If the top's not too bad, drill it with the pin above the fingers, about a 5 1/2" stacked layout. You could always drill the fingers deeper to take out some finger weight if it's got too much. Or put a weight hole above your fingers (I'm not a driller, and you don't see many balls like that, but it makes sense to me that if there's too much finger weight, put a weight hole on the finger side.
Make sure you re-weigh the ball after you plug it to determine the new CG.
SH