there are definitely numerous ways to skin that cat. the tight gaps concern me. .013 on the second is really tight. be very careful to get the gaps perfectly square ( as you always should ), and don't overheat that thing. i have a very similar build in my street strip car, and i'm at .022 top and .024 second, and have as near zero leak down as a conventional ring engine can have. i seriously doubt one could find a measurable difference in leak down between .013 and .024 on the second ring. the extra silicon, btw, makes for a much more scuff resistant piston. good choice.