I have a marshall tsl 100 head which has a seperate effects loop for the clean channel and a seperate fx loop for the crunch and lead channels. Currently i am running my boss chorus pedal on the clean fx loop and my boss delay pedal and boss pitch shifter on the crunch and lead fx loop. I want to essentially have seperate delays and reverbs on the clean and crunch/lead channels so instead of adding another delay pedal on the clean loop and seperate reverb pedals on each fx loop could i not just add a programmable rack effects unit that has two processors. I.e. the rack would simultaneously connect to both effects loops on my amp and run two different programs i.e. one program for each effects loop. So it might run a reverb, chorus and delay on the clean and a different reverb and or delay on the crunch/lead loop when i switch channels on my amp? Also i would like a footswitch unit that would say add a delay to my reverb or a chorus and delay etc. Any ideas? Tc G Major 2 or lexicon Mx400xl? Midiverb 4 although it says that midiverb can only run 3 effects at once, does that mean i could have 3 seperate effects running on each of my effects loops? Please advise as surely this will save me spending £100s of pounds on more seperate pedals to add to my effects loops.