THis is for a B18B. I am thinking about these specs:

T3 turbine 76 trim, 0.48 a/r housing, stage 3 wheel

T04E compressor 50 trim 0.50 a/r housing OR 57 trim 0.60 a/r

I'm having trouble deciding the trim for the compressor. Has anyone run the 50 trim and can comment on it, I know the 57 trim is the popular choice. I'm looking for about 200-250 whp and strong boost no earlier than 3.5 k or so, since I don't want to boost a lot when city driving. TIA