Thanks for sharing your thread, Nate. I have learned from it that they will 'pop their top' if they are stressed from a recent change. That's exactly what has happened. The FD has cemented itself thru several LR's and recently, one of the LR's shifted slightly, pinching the very base of the tube, causing a right-angle of the tube. I've been afraid to shift the LR to reverse this because the tube is attached to about 4 different LR's.