+1 on using the guitar input with bass to use the octave all over the neck. I prefer the poly-mode and really like it. And yes, there can be a slight delay when turned on.
And no, the "oc-2"mode doesn't sound as fat, but still has that synth-like tone.
And no, the "oc-2"mode doesn't sound as fat, but still has that synth-like tone.