Most drillers drill the hole for the slug at the same pitches the thumb hole will be drilled. However, if the customer later wants to try a different pitch combination, you drill out the old slug (using the same pitches it was installed at), insert a new slug, then drill the hole at the new pitches. That may have been why you had a ball with the slug and hole at different pitches. I'd set the pitches at the same as the hole and drill it out. If the slug was at different pitches, some of the slug will be left toward the bottom of the hole. Just leave that in place and drive the new slug in. -- JohnP
