Gnarly. That guy must've had a full on wobble, not just a creak. I've had those before. Had to retighten every ride. Until replacement.

My recent one was just a minor creak. I don't think I got my left crankarm on good enough on initial install. Creak developed. I cranked it down as described in post #9 and it's been good ever since. Logged about a hundred miles on her this weekend alone. Cranks are quiet as a mouse and solid as a rock.