You could try to place a Loop Mono in Module D, crank its Mix down, and feed the signal from the SEND (or SEND 1) into your tube amp.
But don't understand, why you don't want to use your PROFILER as your all in one device!? Just see more equipment and complexity and weight, and no value add.
Thanks, i will give that a try...didn't think to use the mix parameter...
I have non powered KPAs and instead of having to use active monitors, i like the sound of my combos that don't have FX loops unfortunately