The stereo footswitch is for channel 1 or 2 and master 1 or 2.
Since Peter doesn't produce the Fokker anymore, it's not the worst idea to built a "purist's VH4" amp.
Pretend a VH4 channel 3, but without the signal loss that is (probably) caused by "insert" and parallel loop" and huge PCB
board.
The Fokker sounds amazing, but still has a different poweramp (tranny) than a VH4...
It was more or less a "purist's Hagen" imho.
But what would happen, if you'd built it with a VH4 poweramp an a kind-of-Fokker-concept-PCB-board?
That must be the fastest, most directly, lively sounding diezel. Probably at least as cool as a VH4 channel 3, but maybe even
better...