It sounds like it might work out ok then? You certainly made good power with it. 50hp for a 300 rpm difference isn't a lot....thats certainly streetable. I'm assuming that on my turbo, since it says an "O" trim that is for the compressor side? I don't know how the "O" trim compares to the 60 that you mentioned? I have no idea what the A/R is on the compressor side, but I've read that it doesn't matter as much as compared to the A/R on the turbine side? I don't know what the trim is on the turbine side either.
Greg