Wholly Silence of the Lambs training Hall! that joint looks scary! Peter have you tinkered with driving the shoulders into the ears more? I think it might tighten up that overhead position.
If you touch on the hip replacements, can you start that in the special populations section. I think we had a few posts on HR's a while back. I'm certainly interested to hear what you have done.
"Survival will be neither to the strongest of the species, nor to the most intelligent, but to those most adaptable to change."