Hey Bud,
I do have a 1200 Pro. To be honest I have not used it yet for pinball hardware but she works a treat on empty rifle cases. Media (corn cob) does get pretty soiled with gunpowder residue and case lubricant but I guess ramps and the like will be carrying their fair share of grime as well. I dont add any polishing agents either (because I am not sure what to use) and tumble overnight before and after case resizing. Beautiful results.
Cheers,
Rich.................................................................