Wow so 4 different preamp going into 4 different fx units. Any reason why 4 preamps? And 4 fx units?
Well the Piranha might be sold soon so it would then be 3 pres. MP2 has the best cleans, I use the MP1 for 80's covers like Firehouse, Thunder and Skid Row. The Marshall is for more of a Judas Priest type tone, some early Def Leppard stuff.
Once the piranha and intellifex go I plan on getting a patchmate or GCX guitar audio switcher so I can run any fx with any pre. Limitation of the ground control pro is that it can only control up to 8 units.
I like the pitch shifting and reverb on the Lexicon, love the 8 voice chorus on the intellifex. Quadraverb is used for delay only. G major 2 sounds best with the Marshall, not too bad with the ADA's.
The main reason is because I am a gear junkie!