So I ordered a neck with 14mm GB7 holes predrilled and ordered some GB7s both from Warmoth. I'm finding that the "sleeve" portion that screws into the base of the tuner won't fit in the hole. It wasn't even snug. Now I spent about 5 minutes on this before heading off to work, but I'm wondering if I need to break out the mallet. Are Gecko necks super duper snug? Or should it slide in there? I've built a bunch of P and J basses using Warmoth necks and not had this issue before.