I use the Precision Drive, but almost anything will be fine. I like the PD because I use a lot of different tunings, and the tightness switch helps with low tunings, and I turn off for Eb tuning/etc. But I do live on the Blue channel. When I get situated here after the move, I'm a)gonna crank my 5150 to break in the newer greenbacks, b) tube roll with some of the many NOS preamp tubes I have in my arsenal. That'll be fun.
on a side note, I bet the BB preamp would sound good on the blue channel...I've had so many screamer pedals, and now only own the precision drive...I used tried many with my splawns, but wish I could try some different ones with my 5150III without buying.