Abstract: A dimple pattern for a golf ball with a thermoset polyurethane cover is disclosed herein. The dimple pattern has multiple sets of dimples, each set of dimples having a different diameter. A preferred set of dimples is seven different dimples. The dimples may cover as much as eighty-six percent of the surface of the golf ball. The unique dimple pattern allows a golf ball with a thermoset polyurethane cover to have shallow dimples with steeper entry angles. The unique dimple pattern also allows a golf ball with a thermoset polyurethane cover to have greater low speed lift with a lower high speed drag.

Abstract: Golf club sight alignment device comprising a plurality of rectilinear slots or grooves disposed in the top surface of the club head from the face to the back of the club head at predetermined angles of incidence to the bottom of the club head and having predetermined depth and width such that one holding the golf club can correctly position the golf club by visually perceiving the light reflected from the bottoms of the grooves or slots at maximum visual acuity to ascertain when the club is correctly positioned for striking a golf ball.