Thanks mauserkid, I was going to make some inletting screws them read a tip about 1/4 UNC bolts so got a pair of 2” ones today. They screw in a few turns and sit nice and straight so will try them.

When inletting the bottom metal - I assume you have to do it by eye (no screws or guides)? Pre inletting should be true so don’t think this’ll be a drama