So, I'm kind of assuming no direct response means yes, but just to clarify, a brass brush is indeed a brush with brass bristles, correct?
Yes, it has brass bristles, but make sure you dont go get a grill scraper with brass bristles, these will dig into your base and cause problems. Check your local boardshop for tuning supplies (not often available here), or go somewhere like SlideWright-Active Life and Multi-Sport Tools and Wares
or Tognar ski tuning tools, ski wax and waxing tools, snowboard wax, and Ski repair, waxing, and tuning advice
for a good brass brush
If ur planning on stripping your entire base to do a thorough wax job then you can use base cleaner...but be aware that base cleaners dry out your base.
I agree completely. If you wax your board regularly, you are making your board faster every time. The more waxes, the faster you can go. Pro racers may put 60 waxes on before ever riding their skis, just as prep. As soon as you use a base cleaner, you are pretty much cutting down on the affect numerous waxes have benefitted you, and are drying out your base.