Brickguy is on the right path here....there are too many variables....
and us mortals really aren't going to see that much difference at all in these drillings. Keeping in mind, the pin is primary when it comes to layout. If 3 3/8 inches from your pap is strongest, then 5 inches isn't that strong of a drill. Therefore, the 5x5 would be longest, 5x4 would probably be the strongest of the three, and the 5x3 would be the earliest (only comparing these drillings, AND, all things being the same,...same ball, same bowler, lane condition, etc....)
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JEFFHello, I just lowered my track !