AboutChip Aki Expertise Ball drilling/fitting, Layouts, coaching related questions, any. USA Bowling Bronze Certified Coach, International Bowling Pro Shops and Instructors Assocation member, 15 years Experience in ball drilling, Storm Staff member.
Experience Team USA State Champion Indiana'87 and Lousiana '97, National Collegiate Championship Wichita State '87, Ky state Singles Champion '99,Team USA National Finalist '97,'98, USBC Open Singles Champion 2007 (814 series)
I need to know your advices concerning the drilling of a plastic bowling ball, for example the T Zone.
Actually I drilled a 13Lbs ball for a friend who uses the pincky and the ring finger because its middle finger is out of order.
Because he has a trouble to make the 10th pin I ordered a 12Lbs T Zone for him but I don't know how to drill it.
Thanks in advance,
Vincent
Answer Just drill the ball with the CG in the center of the grip. The Tzone does not have a dynamic core in it so any kind of lable shift wont make much, if any, difference in the reaction. The balls material will make it a good spare ball. The most important thing is to get the grip correct.