I had an open bowler come into the shop who insisted on getting a performance ball. The bowler at the time was using a house ball and gripping the ball with a half thumb. After reading online and people telling him to go full thumb he wanted to get fitted for a ball. After suggesting a Rhino at most as this was his first ball, he insisted on something else, which was a roto grip wreck'em. Using the BT fitting wheel and a jayhawk fitting ball, I got him fitted for a fingertip grip.

When he picked up the ball I watched him throw the ball for a bit and he then started complaining about his wrist hurting, which seemed to be from trying to throw the ball like he was before, trying to crank it and twisting his wrist at release but now with his thumb in the ball.

After giving him some tips on proper release for a finger tip, keeping his hand behind the ball and having his thumb point to the sky at release, he started getting better rotation on the ball, and the ball wasn't hooking off the lane. But now he is complaining of discomfort on the back of his hand. He says he has no discomfort elsewhere and the grip does not feel stretched to him.

I have learned my lesson, don't sell a performance ball as a first ball, regardless if the customer insists.
I told him I would redrill the ball for a half thumb grip if he wants, but he then says no, and wants to keep trying full thumb.

Any tips on how others deal with customers who insist on getting a performance ball, over a plastic or entry level ball would be greatly appreciated. Especially these younger generation bowlers who are using two hands or no thumb etc. with a house ball, and then want to jump into a performance ball?

Just a opinion, but He's changed to a totally different grip than what he was using before and how he's releasing it.

Whether he bought a entry level ball or a performance ball. He most likely would have had the same issues, which all appear to be fit and release related.

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"REMEMBER, it isn't how much the ball hooks, it's where."

Yes, a good point, regardless of the ball he would be having the issues he is having. My concern now is that if he wants to go back to his half thumb style grip he was using before with the new ball, that it will be way too aggressive with his revs.

I guess my question should be, how do others suggest to a bowler who is buying their first custom fitted ball, to stick with a polyester ball or entry level ball over that high end ball they see the pros throwing on tv?

Unless you can convince the customer to change his mind you only have two choices, either sell him the ball he wants or send him to another driller. I would sell him the ball he wants with the reminder that I don't recommend it. As far as changing his mind, some will listen and some won't. All you can do is try. -- JohnP