While attempting to load my boat (190 Searay) it would look good until it got 3/4 the way out of the water then my right bunk would completely turn and straighten up throwing the boat to the side. So I put the boat back in, put the bunk where it should be and tightened it. It appeared tight by hand, however the boat did the same thing?? Thinking maybe a couple of washers at the end of the bolt to tighten up on the trailer flange??? Anyone ran into this, or have any suggestions???