All are now fitted with T-Nuts. I was a bit overzealous about hammering in some T-Nuts and one of mine on my personal build, got in crooked. Not a big deal, but frustrating nonetheless. I might just skip that bolt in the end and just go with three. Other than cosmetic reasons it’ll hold on fine with two or three.
Oh, and my hip shot open tuners came. I haven’t tried these before and they look really cool. Their small footprint will make it easier to space out on my headstock.