Hi,
usually i take a DC as source to pan the voice out of center. Sometimes let it run back trough center to the other side with Note Number as source for the move. Usually i avoid the moded panning of the delays and place them static. (Otherwise my brain would start to pan like initially mentioned.) Sometimes i use a envelope to let the sound move around a bit.
-try "evolver mode" take your voice pan it relatively hard with the DC, copy it to layer B and pan it on the other side to get a stereo voice in Stack mode to double the crazyness.

I havent tried to delay the Amp attacks for timing based pan.
Hope this helps,
Martin3