With the lane conditions you bowl on whatever it may be light to heavy 5-5,10-10,flat oil or sportshot.What part of the pro that you can use to counter the lane condition that you bowl on? Mental or swing, hand position etc. Get your thinking caps on all you Ballreviews members and please no idiot answers.Give the name of the pro and what part and why. For exsample Norm Duke his hand positions for different oil conditions because I have problem with the ball no t finishing like it should.