You got it brutha! I'm .005 out with .039 gasket. Brings my quench to .034. I wouldn't go any tighter. I think .030 might be pushing the envelope.......Maybe.
It’s the way to go! I’m at 0.003’’ out of the hole. Got to check all clearances carefully, the pistons won’t hit the head if you don’t go crazy with bore clearance.
There’s plenty of single cylinder motorcycles with a 100mm plus bore that have around 0.025’’ - 0.032’’ P/H clearance. I’d be a bit nervous under 0.030’’ I’ll admit..