This pedal now makes total sense!!!
On tuesday's practice, the switch controlling channel switching on my 5150-II broke, so I was stuck on the clean/crunch channel. Making the best of a bad situation, I stuck the bloody murder on level: 10, tone: 5, drive: 0 and put the gain on the preamp on about 5/10. With the bloody murder in line, this gave a REALLY BRUTAL tone, but very open and dynamic -not overly compressed like the drive channel on the 5150-II. It was a real breath of fresh air, and gave me quite a few tonal options at hand, with and without bloody murder (which sounds beautiful through the clean - non-crunched - channel, going from passable cleans (better with it off) to nicely overdriven tones when really hitting the strings hard. Then kick in the crunch setting and BOOM, brutality awaits. Hahaha!
I'm not yet sure whether I'll stick with this for our gig tonight (headlining!!), or to go back to mainly using channel 2. I might try it on a couple of tracks to see how it sounds.
Thanks Joe Bodenhamer, this Bloody Murder is Bloody Brilliant!
Roo