Back when I bowled youth leagues and Samantha Fox was hot....scratch that, she's still hot....I remember seeing pinkie grip holes on some of the adult bowlers equipment.
can this "pinkie hole" help support the ball to those bowlers with h/o of injury to their wrist?
Also, in the recent past, I've bowled with guys who had x-holes near/above their finger holes. what was the purpose for that?
I like to keep my stuff (layouts) simple and rely more on the surface... But I'm curious about my past observations.