Sorry, but... what? most domed pistons would do that. the domes are angled or relief cut to avoid PTV contact.
anyway, have you considered measuring your current head's chamber volume with the intended spark plugs, and then finding out the other parameters/variables required to make an accurate calculation of attained compression with various combos of pistons?
I know the L-Engine program does this, but heads and blocks vary to casting... so you may wanna check on that. I think with 12:1 or 13.5:1 you would be safe incase u get a horrible mix of ethanol somehow.
in that case you may want to run a J&S Safeguard too.