I really enjoy tune amps. I like having my amps clean until I strum as hard as I can and get a little bit of grit on the attack. Then I run all my pedals into the front.
I use the 4CM with my fender deville, but nottingham vintage push because it has no effects loop.
I wanna retube all of my amps with JJ 5751 tubes. 5751's are the best sounding preamp tube I've ever used. Even the cheaper chinese ones sound great. Despite their unreliability.
I am loving my M5 for Everything but grit. I might even use it for some delays and not my dl4 due to its convenient tap division control.