I am going to be filling in for a Death Metal band, and they tune to C standard. I would like to play a 4 string, as my six would not be necesary. Is there a better way to set up your bass for handeling C-F-A#-D# ?? As it stands right now, obviously I have no tension on the strings or neck, things are very "clackity." The notes come through clear enough, but, I was wondering if there was anything I could do to maybe keep my usual tension with the lower tuning.