[jim_0068]

smash factor is an efficiency rating for how well you converted your swing speed into ball speed.

1.50 is ideal...some monitors today are showing higher than that but i don't really believe it. If you can consistent get 1.46-1.47 on a vector you can't really do much better "all the time."

110 swing speed x 1.44 = 158.4mph of ball speed
107 swing speed x 1.48 = 158.4mph of ball speed

As you can see, you can swing faster with bad contact or swing slower with better contact.

Most people would improve their "smash factor" and overball ball speed by swinging @ 80% on focussing on sweet spot contact.