Yeah the Beta Lead is only the drum machine right now. I should just use a powered PA speaker or something but I don't have access to one so this is my compromise. Doom drums!

I did try to experiment with other multiple amp rigs but it gets difficult to make it work properly and to manage hum etc. It's fun to play around with though.
I might rewire and try jamming with mono cleans and stereo dirt so I can play around with amp distortion on one side VS fuzz on the other side and get a bigger volume change between clean and dirty.
With two amps I use a JHS buffered splitter (the black box at the top left hand corner of the board) to isolate one amp from the other and eliminate any ground loops.