for clean up simple green and hot woter works well .. every compound after black is more less a color motion .. i use the cut motion 2-3 passes at first black/sisal ... then i go color motion : black/sprial ( i get a nice shine) then green/sprial then to white on a losse cotton... after that i toss on a new loose and hit it with red .. each buff has's it own bag to be stored in and i clean up before putting a new buff on .. the compound's i keed in plastic bag's to ... as for the bench grinder .. caswell got a few nice buffer's .. i lost count of how many machines i tossed out due to locking up .. i keep a spare on hand for when that happens