I use a grease based white rouge sold by Brownell's gunsmithing supply called "555". It produces a mirror shine final finish after polishing with a series of coarser media polishing steps. The idea is to eliminate any roughness that might be there during manufacture of the lifters. It works best with a large diameter (8") hard felt polishing wheel and medium speed when preparing firearms for hot tank caustic bluing.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!