Just curiosity questions.
Will you switch amps for leads, or hit a boost on the MKV side with both still on?
Will you have different effects for the boosted lead?
Or are you going to just run time based stereo effects in the loops on left and right? If not some would say it is not actually stereo but just two amps, nitpicking I know.
I like two amps but only have the chorus and Time Factor in the loop stereo. An OCD in front of a crunchy riffing amp and just an EVH Phaser in front of the MKIIC or whatever amp is for leads.
I just have an ABY, but there are better ABY units that let you set a balance instead of 50/50.
My easy stereo set up is the 2 combo amps, IIC and Bogner New Yorker, 1 boost pedal and the Timefactor.