Yeah @Canadian farm boy you knew what I meant, the in hole. Of course for some folks... er never mind. I ended up close to what @srcarr52 recomends, and thank you for the advice I'd follow it more closely if I was capable. I wound up at 79 relatively flat, corners as tight as I can get them which is awful in comparison to a lot of the pros kind enough to advise me. Only major thing is the skirt on this meteor piston is REAL wide and I didn't get that close since the bottom ring peaks in and I didn't want to go wider than the ring stops.