5/64 & 1/16th ring and max bore size

I'm not sure I understand the first part of your question. You can't use a 1/16 ring in a piston designed for a 5/64 ring, you have to use the ring the piston was designed for. Other than that moper said it all.

X2! Don't use a 1/16 ring on a piston designed for a 5/64 ring.