Yeah, I tried to remove the top strap and although that did work to keep the valve and reg from hitting me in the back of the head, it created other problems with the wing itself. Unfortunately the Transpac is designed for only 2 slots for the cam straps, so you cannot adjust these. Removing them would have worked better if I had a horseshoe shaped wing, but I don't, I have a donut style wing. After trying several things and nothing working, I think I know whats wrong... my Transpac is too big for me. I have a size Medium and I should probably have a Small or X-Small. I had my husband try my Transpac on and although he is more like a Large or X-Large, he did not have the same problem. The reg and valve stem area was positioned lower on his back where it should be, not right behind his neck like it is with me. I am going to take it to my local DR dealer to see if they agree. If so, I may have a fairly new Transpac for sale soon.