depending on what you want to do with it. you can either plug into the normal input and use the mesa preamp like a pedal (activating the PAB will bypass the tonestack to let the mesa shine through more) or plug the mesa into the effects loop input which will bypass the preamp and just use the poweramp
Thanks...I wasn't sure if I could do your suggestions without some major repercussions...will give it a try in the next few days...but so far, for recording, this guy is the one!
Edit...after a few hours with the OT, I am not in a rush to change anything...but I will give your suggestions a go in a week or so...so far, the OT on track1 / Mesa on track2 combo is very good...although I will try the Mesa into the OT later. Using the Effects Loop input for the Mesa as the initial input is something I never would have considered...thanks.