Hi,
I never really understood the buzz around feedback operators.
I think it's because it's the easiest param to understand in a FM algo
1. Well i think it's better than the DX7 one which only has 7 levels. But i prefer how feedback sounds on the N.I. FM8.
2. Only in the preenfm3.
No, all the carrier operators of a same algo go to a same stereo output.
The modulator operators does'nt have any output, they only modulate the carrier operators or other modulators.
Each instruments (timbre) can be assigned to a different output.