Sounds like your repeatedly putting the Bar into the same position in the hex.
Mark the spot on the hex with paint or something, and get the bar into the next tighter position on the hex that isn't marked yet.
With the LCA pointed down, then grab onto the hex with a pipe wrench or something and turn it down also. Just because you've pointed
the Lca down doesn't mean that your going into the next position on the hex. You must turn the hex to get the bar in the correct position.
