thanxs for the tips guys, did some searching/research and found a pro shop,with a highly regarded driller/owner, took my new 1 month old storm rapid fire pearl to him, to have a second opinion on the span/ pitch etc, he watched me bowl, then checked my span/pitch. but then i got lost with all the numbers( 1/4 inch pitch etc etc,) he said lol, but it ends up that my span is almost 3/4 of an inch to big, so now he is going to plug the thumb and redrill it properly, lesson learned like juggernaut said not everyone in a pro shop knows there stuff like you would think they do,thanxs again for the advice,
Etch