Current options on multipurpose lifters?

Flat tappet cams have a crown on the lobe (one side it taller than the other) so as to rotate the lifter. Put a roller lifter on than and it will grind that crown down and you'll lose lift. And once a cam starts getting ground on, its done. Roller cams have no crown so the roller hits 100% of its footprint on the parallel cam lobe. Its been done with solid rollers but the results were not good. Cam was shot and most of that debris will end up in the rest of the motor.