I have been producing various percussive sounds on the electric upright while I play a bass line:
http://www.youtube.com/watch?v=gQXElogRNo8
I don't like to use compression on upright in general but with this particular technique I want to try to keep the various tones balanced and protect my speakers from overload.
I have an MXR bass compressor that I might try. Should I just use a limiter setting?