Today I was shooting with my new self-aligning peep and the tube popped off at full draw. I thought these things were supposed to eliminate peep alignment problems not cause them. Anyways, I put a drop of super glue on the peep and slipped the tube back on. It Did fine for about 10 ten shots, and then SNAP! same thing all over again. At this point I'm wishing I had stuck with my old tru peep. Having the tube pop off or break in a hunting situation would be a disaster. I also noticed that olympic shooters as well as most pro hunters on tv aren't using self aligning peeps, why is this? Are there other disadvantages I don't know about? String twist perhaps?