...I am also contemplating a HV pump with the use of these full grooves, but might not since I'm running the the rods @ about .0017 and .010 side clearance. 'roughly remembering'
My oil pressure was low, about 10 psi hot at idle, with full groove mains. Quite unnerving, but always came up with the rpm's. That was with the HV pump. Good luck.