Wow! Thank you all for the information. I just got my first batch of 44 Special brass done and they look good after running over night. Not highly polished but really clean. I'm not overly concerned about the primer pockets but some are grungy after many reloads. I'm not sure what the media is that came with the Thumler, at first I thought it was corn cob but it looks more like cat litter now. I'll be getting some new media after I read through all your responses again.
Thanks so much.
Scott