new fast greens insert works like magic to control distance

new fast greens insert works like magic to control distance






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Featured in Golf Magazine, July, 2012 issue

Straight Aim mallets were designed first and foremost to meet a need: a good aiming line- designed for effectiveness rather than esthetics or visual gimmickery; a simple high-visibility sharp white line against a matte black, non-reflective background. We developed a new insert that is smooth and slick. We call it the SLPRY insert; it reduces sidespin from cutting across the ball. It also keeps a missed putt closer to the hole by 10-30% on average. Because of this statistical effect of reducing error variance, we call it the "SLPRY QUANTUM" insert.

Additional features:
A progressive 2-bend-shaft model, that puts hands a bit more forward, has been added to the traditional model that has a straight shaft connecting to the putter head hosel.
Blade versions have been added to mallet models.
Progressive models have face inserts for dealing with very fast greens. The mallets have three insert options (see #6 below); all progressive blades come with a fast-greens insert.
All putters are face balanced.
All putters have an ergonomic, easy-on-your-back, ball pick-up feature with an option for a marker pick-up.
Head weight option: you can, if you choose, specify head weight in your order. Putter heads normally weigh 315-350 gm. Extra weight can be added. Standard grip is Golf Pride pistol. An oversize, or other, grip can be specified.
Customizing: putters can be customized for length, lie, swing weight, head weight, grip or anything else you can think of.
A free head cover is included with every putter.

current models
original models
Progressive Models
Traditional models
progressive top viewsprogressive top views
traditional top viewstraditional top views
Progressive top views
Traditional top views



Putting experts* have discovered that face misalignment at setup, and open or closed face angle when striking the ball, are the biggest causes of missed putts.
*D.Pelz, Golf, Sept. 1998, pp 96-97; S. Elkington, Golf Tips, August 1998, p 49.

The Straight-Aim™ aiming system was designed by a Ph.D. expert in human factors to be the simplest and most effective in the industry. A single, wide, high-contrast aim line on a nonglare background makes accurate face alignment easy.

2. NONGLARE FINISHES for easier visual face alignment.

Traditional mallets come in a brushed aluminum or a non-reflective matte black finish that is used to absorb light inside film cameras. Traditional blades are bronze- coated stainless steel. Progressive mallets have the light-absorbing matte black finish. Progressive blades are hard bronze alloy and have an amber finish that naturally darkens a bit each year. You can brush it bright or let it continue to darken.

3. FACE BALANCE for head stability and twist resistance.

The virtual center-shafting used by Straight-Aim™ has become a popular putter shafting method. It provides much more twist resistance than physical center-shafting. It puts the center of rotation and the center of gravity in the middle of the face, and the visual aiming line located at the middle of the sweet spot is unobscured by the hosel. Putters shafted in this way provide more consistent distance control than heel-shafted putters. (Research report, Golf Digest, January 1999, p. 19.)

Face balance is standard on all models.

heel-toe weighting4. EXTREME HEEL-TOE WEIGHTING.

Removal of excess metal from behind the impact area provides heel-toe weighting of 88% for the mallet and 94% for the blade.
Heel-toe weighting is important: Published reports indicate that even the best tour pros miss the sweet spot 6 out of 10 times. And independent studies show that heel-toe weighting of only 70% provides significant improvement in accuracy and distance control.
(See Golf Tips, August 1998, p.64)

Heel-toe weighting expands the sweet spot by creating a high moment of inertia (resistance to twisting from off-center hits). Thus, the energy from the off-center hit is transferred to the ball rather than dissipated in twisting the head. In this way, heel-toe weighting improves distance control as well as direction.

5. SWEET SPOT EXPANDED into a wide sweet impact area located exactly in the middle of the face.

With Straight-Aim™ putters you can set the middle of the face behind the ball, point the aim line at the target, and you will hit on the sweet spot.


dispersion test results of 21 foot puttProgressive mallets allow choice of a standard firm polymer insert or impact-force-reducing (IR) polymer inserts that make fast greens more manageable for those who have trouble with fast greens. IR inserts for fast greens (10% IR) or very fast greens (18% IR) are available for Progressive mallets. You have to putt a bit harder with these, but our research with a putting machine has documented increased accuracy with IR inserts. IR inserts meet USGA standards for face hardness. This unique property of Straight Aim inserts is a application of basic physics and mathematics.

Progressive blades all come with the 18% IR insert. Traditional mallets have the firm face insert, either polymer or hardened aluminum. (The aluminum has a bit softer feel.) Traditional blades have a surgical steel face.

reduces distance-robbing vibration and direction-robbing side-spin.

Straight Aim inserts use IR to increase distance accuracy and SLPRY polymer to reduce side-spin. Off-center hits cause vibration in metal heads. Energy lost to vibration is not transferred to the ball. SLPRY™ reduces vibration and provides uniform energy transfer to hits anywhere in the insert impact area, increasing distance control.

Note: The particular polymer, SLPRY, used for Straight Aim inserts is tough (has been used for truck beds) and slippery (has been used for indoor skating rinks). Soft, elastometric inserts, such as rubber or balata used in other putters, produce much less feedback, and are not legal for play by USGA rules, because the face surface is too soft.


gravity level training deviceNote: Your putter must be level with gravity in order to putt the ball straight. A toe-up putter causes the putter loft (3 or 4°) to push the ball 3 or 4° left, while a heel-up putter pushes the ball 3 or 4° to the right of your aim line. A new aim-line device (see picture*) allows a red aim line to appear only when your putter is level with gravity. This device is not legal for play by USGA rules, but can be used as a training device. As an option we can add a USGA-legal mark on any Straight Aim or other putter head that will help you maintain a gravity-level head position with you eyes over the aim line/center of gravity.

Since most putts are hit with an open or closed face,* or with a side swipe stroke, a roughened, milling-marked face or a soft elastomeric insert will act like a ping-pong paddle, putting side-spin on the ball. Side-spin pushes the ball off line. The SLPRY™ insert is finished smooth to minimize sidespin.
*See D. Pelz, Golf, Sept. 1998, p. 96-97


Straight Aim standard putter head weight (315-350 gm) can be specified. Standard Straight Aim swing weight is D6-7 at 35 inches. This can be customized. Long and very short putters require more head weight.
Weight ports in the heel and toe of Straight Aim putters allow us to set the head weight of your putter at a value of your choice-prior to shipping or for you to add.


Most putters have thin heads with the top of the head so low that it often strikes below the ball mid-line, causing it to hop off the face. Insert putters have the insert so low (for example, Odyssey insert at .81 in. high on left in the photograph) that sometimes the ball is struck with the metal above the insert. Straight-Aim™ putters use a face height of 1.25 in. to reduce hopping and to assure contact with the insert on every putt.


Heel-toe rounding prevents head drag with upright or flat lie. Front-back angle of 2° prevents bottom drag during the stroke.

face loft12. FACE LOFT.

The standard loft for Progressive Straight-Aim™ putters is 3°; loft for Traditional models is 4°. (See discussion of loft in Golf Illustrated, Sept./Oct. 1997, p.48).

ball pick-up 13. BALL PICK-UP.

Removing most of the metal behind the impact area left a space that is used as a ball pick-up. If you have a sore back or want to avoid getting one, you will enjoy this feature, which is included free on all blade and mallet models. Picks up standard and large-sized balls off the green or out of the hole.

The size and face length of Straight-Aim™ putters is similar to models offered by Callaway, Zebra, Taylor, Ray Cook, Odyssey, and others. MANUFACTURED IN THE USA using USA materials. A lot of skilled handcrafting goes into each of these beauties.


Customers have requested a feature that enables picking up a ball-marker without bending over. We can imbed a small, unobtrusive magnet toward the toe of your putter. The magnet picks up a common ferrous ball-marker. Some customers use an old dog license or washer as a ball-marker. It works just fine.


An oversize grip (Karma or other) or midsize (Royal, Winn, or other) at cost, are available.  Other possibilities (indicate oversize grip desired; price will be cost, or send your own grip).

16. SENSORY FEEDBACK FROM BALL-STRIKE provides information about putting stroke.

Current Straight-Aim blades are designed with hard bell-quality bronze that provides enough sound and feeling response to indicate when the putt is mis-hit with an up-stroke (wrist-flip), side-swipe (heel or toe hit), or the ideal center hit on a square face following down the line.*

Thus, unlike the dead, no-feedback putters on the market now, this one can improve your putting by training your putting stroke.

*Like Johnny Miller putting dimes down the hall of his college dorm.


pendulumStandard putter shafts are stiff. A lighter shaft, steel or graphite, can be installed in any Straight Aim putter or in any other putter for $10-20. A lighter shaft will provide more feel for the head during the stroke that will help locate the release point (apex) of a pendulum stroke and help detect any perturbations in stroke smoothness. A lighter shaft can help train a more consistent, effective pendulum stroke.



© 2006 Straight Aim™