Dyno-Thane Concept 4 Bowling Ball

I first bowled this ball on a house condition on some older wood lanes. I was surprised to see how hard it hit and how controlable the hook was based on the ball speed. After setting down a tournament condition i decided to test my different line. After throwing a deep outside line and stroking the ball i thought that was the best line for the ball. I started leaving a few # 10 pins so i tried a tighter line... and found the balls true potential. By keeping the revolutions on the ball but rolling over 20 board and out to 13-14 board, the breakpoint angle was sufficient to send 10 pins into the pit everytime. I had mine drilled with only a small ammount of leverage, and by controlling the ball speed you could manipulate the line to give precision spare shooting on the left hand side of the lanes (for a right bowler), and by flattening you could hit single pins on the right hand side (although flattening the shot out lost a great deal of power) A fantastic ball that I still b