My EE hen is around 8 months old and a good layer. Our Australorp hen (yes, hen) has been aggressively mounting her for quite some time; the feather damage progressed to a point that there was no doubt that a hen saddle would be a good solution for both of them. My mother had trouble getting the saddle on her correctly, so tonight - maybe an hour ago - I put it on her. The saddle is double-strapped; the straps criss-cross over the chest and each strap has an end to go over the wing and one to go under. Let me know if you would like pictures. The brand is the "Hen Saver" chicken saddle with shoulder protection. I put the strap on correctly but tucked it under the crop, thinking it would be more comfortable for her. The straps are a little tight, but the size is large and so i wrote it off. About twenty minutes ago I went out to check on them and she was sitting on the ground of the coop (not the perch), looking dazed and with a cracked thin-shelled egg underneath her. I was pretty shocked; I moved the straps up on her chest so that they sit above the crop, and I hope that will resolve the issue, but i was quite startled by the malformed egg. My best guess is that the straps were too tight and in close proximity to her oviduct so that the egg was squeezed out prematurely; is that a plausible explanation? If so, will moving the straps up be a good idea? Or should we ditch this hen saddle entirely? She is getting quite torn up.