I wish someone would invent a way to modify your thumbhole after it's been drilled. It's really costly and time-consuming to keep going back for more attempts at what should have been a simple deal.

At any rate, until that happens, once you get it right, you can use the Vise Exactacator to slug/reslug all your equipment from then on.

SpareMe, they have. You put this liquid in, it hardens, and then you can fix the mistake.

:P