LL, I agree with you to a point. There is something to visualization, and if you want to be Tony Robbins about everything, that's fine. I never go to the line without thinking that every shot will be my best, and I usually don't expect to use my spare ball for the night.
But Mushtare is not the poster child for that philosophy. By claiming to shoot 4 900's, he has tarnished any belief he shot 1. Because of that, he's a fake until proven otherwise. What he claims to have done has not been done by ANYONE in ANY SPORT, EVER! Machines haven't even done it.
BTW, the 900 you referred to above was Darren Pomije from New Prague, MN. on 12/09/04 and he shot it in league with lots of witnesses. That's no problem. The ABC even validated the 900 on the next day. Compare that turnaround with what's going on with Mushtare.