At a first sight the Mark V may look like a non progammable compact version of the Triaxis/2:90 but in the moment you play both you see it's far from it. 1st the Mark V don't have a drive control (what was Gain 2 on all the Mark amps and on the Triaxis) and feels less crunchy. I don't know if you played the combo or the head. I think it's an awesome amp, very versatile but far from the tone shaping capabilities of the Triaxis and on the "side" of the Mark family tone. Just to be clear: I would love to buy a MK V combo for practice and small venues and to avoid to carry around fliht cases and cabs all the times, I think it really has a beautiful clean and Mesa-level dirties but not as substitute of my triaxis based rig.