Here's where I'm at.

[ReturnofCuda]

Yes, use Aluminum Oxide. Or Red Garnet is better if you can find it.
Aluminum Oxide has a very fast cutting action. Once you start using it, you will see how much faster it cuts and gets metal clean.

If you plan to re claim the media you used and put it back into your blaster, keep in mind that all that rust dust will be in with it. So a good air mask is always important in using everytime.

Make sire you get a second air purifier also. One at the compressor and then feeding into the one I have shown in the link. Condensation plugs up pressure pots big time if that's what you're using.

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=98904

Thanks, I'll see what I can come up with local. 

[ReturnofCuda]

Looking good, Doug 

Thanks, still a looooooooooong waaaaaaay to go.