Are these pedals workable(and musical) or is there some inherent issues that 6 stringers need to know to play them at gigs? Recording wise do they take time to setup and the need to condition the track to sound full , or? Are they best to get two speaker, stereo outputs to get a Leslie approximation? I haven't tried either one. The B9 looks like it came out last June and the new C9 looks very interesting. Are these musical at many settings or do the sales / YouTube videos, just get that sweet spot and fade the edges, or something?