We downed Thaddius yesterday as a 5 boxer + 4 boxer + 1 boxer. The main thing for me was to prioritize who jumped first. So tank went first + a healer. I left one of my ranged dps on the edge of the mini boss platform and she was in range so that was a jump I didn't need to worry about. I run three healers and one I just plain abandoned. So for me, 5 boxing, I just had to have 3 make the jump. If I'd thought ahead I would have had my other ranged dpser on the other platform and removed yet another jump. As far as the polarity shifts, the rule was to keep everyone spread out, but if I noticed a toon nearby the one I was actively driving had the same charge, I'd put them together.