I'm with Barney. I don't think the hitch is set up correctly. It sounds like the OP is trying to use the WD to level the TV. Reese specifies minimum 5 links under tension. The OP stated he started with 4 links and went to 3, and that "seemed to help. That tells me the hitch adjustment has been tweaked to the point that he doesn't really know what is happening with the WD. I would start over from scratch with the installation instructions and go from there.
At any rate, with the tongue weight off of the hitch, the bars should not be that difficult to cam down.