FYI, a bristle brush attachment is the bomb! I stole the one from my home vac and duct taped it to my baby shop vac. Lemme see if I can find pics.
Here is the newer version of the baby shop vac I bought for R/C. I take it to the track to clean my offroad cars too. Nice and cheap at $40 too!
I can't find a pic of mine but one of these do the trick nicely. You can quickly pick up all dust all the way to the edges of RCP track and in the corners.
