If so, Stage 0 was designed with some sort of boost control (15.5psi). You can run without it, but not increasing boost = no power gains. Plus, you'll probably run really rich.
I ran a GABEDUDE MBC for about 1 year (ball/spring + bleeder) before going to an SBC-ID III when I went to Stage 2 from 0.
IMO, at stage 0 you really don't even need the Unichip. Most of the gains are from the MBC. As long as you don't overboost, you should be relatively safe.