new slant build cam choice help please

Yours sounds like an ideal candidate for an RV15RDP cam, co-developed by Doug Dutra and Erson Cams a couple of Erson owners ago. The current Erson owners don't have the info and aren't interested. I sent my RV10RDP for master profiling and it's now available from Oregon Cam, but unfortunately the guy who has an RV15RDP on his shelf refuses to "risk" sending it for mastering because what if a meteorite hits the mailman and he drops the camshaft and it bursts out of its box and rolls down the hill and gets run over by a truck and sent flipping end-over-end into the air then falls into the lion cage in the zoo and the lions piss on it and rust it all to hell. Or something! Basically translates to "I have it, you can't have it, FU". Then the other guy with an RV15RDP made noise about having it mastered, but AFAIK never followed through. See here (things start heating up on page 2). Might be worth nudging him.

Avoid Comp's Slant-6 cams and whatever you do, don't give any money to the clowns at Clifford!