I tore down my 075 tonight and received an interesting surprise! The piston in it looks way different than than the replacement I have! The old piston has big, rectangular lower ports and the new piston has rounded lower ports. Also, the old piston (and the new cylinder) have two ++ on them. In Mahle-land that means ”Super” p/c, does the same hold true for KS? Should I “port match” the new piston to the old ones’ specs? Any advice would be appreciated.