This was accomplished by mixing 5-10% by weight of small hollow glass spheres with the normal elastomer and other filler materials needed to make either a two-piece or solid construction.

The Surlyn cover that he created made golf balls nearly cut-proof and revolutionized the game of golf for the average player. Not commenting on your swing, but just a heads up that it's totally possible you could look at your DTL position at, say, impact (P7) or after (P7-P8) and compare to your favorite pros and see you have less side bend. This dimple pattern was designed so that the ball would have aerodynamic symmetry in flight regardless of its position on the tee or the ground. coverage is equal to the total area of all the dimples divided by the surface area of the golf ball.This is important because the dimple pattern and the size of the dimples is an important characteristic of golf balls. The main purpose of this invention was to design a new dimple pattern that was not a modified icosahedron and gave good symmetrical flight performance. You know that one buddy that played baseball growing up, has a huge slice but catches 1-2 drives a round that are just demolished?

This flight trajectory was in between the flight patterns of the HIGH TRAJECTORY TOP-FLITE XL II and the LOW TRAJECTORY TOP-FLITE II.

Spalding golf balls that have this 492 dimple pattern on the June 1985 list are: Top-Flite 492 Spalding USA, Top-Flite Plus Spalding 492, Top-Flite Plus Spalding 492 (orange cover), and Top-Flite Plus Spalding 492 (yellow cover). If I ever try and drive one of those things again I'm going to make sure I'm wearing ear protection! The infringement trial lasted from 1-1-89 to 2-13-89 and the court ruled that Spalding had proven their claims of infringement. The TOP-FLITE PLUS II golf ball had the ‘422 tri-dimple design’ which we reported last time in US 5,018,741.