Great answers all.
I took my rear drums to a local garage to have them turned. Don't tell OSHA but I get to watch. The mechanic showed where you can see the difference in material of original USA made drums and repop drums from China etc. It turns more consistent and has a clean finish. Repops turn somewhat dusty. The guy said the originals wear better. Time will tell but I would convert to disc brakes if the supply of good drums dried up.
