Bringing this back around to the Savage Drive. REALLY cool pedal. It does exactly what it says: adds bite, tight grind to your sound. I tried it boosting my BE50 for slightly tighter metal tones at lower volumes (BE does great at higher volumes). I ran the volume at 3:00 and Drive low, between off to about 9:00. Bite and Tight are very interactive. I couldn't settle somewhere, because different configurations between the two netted some cool results.
I did not use it this past weekend at my outdoor gig, because I was not sure how how noisey it would be with potentially crappy power amplified by the pedal. I used my TC Spark Booster (big one) and that pedal rocks, but the Save Drive is just that: savage drive. I'll keep playing with it.