Hello everyone, I am very grateful to have found this forum; I practiced gymnastics shortly during my youth and then transitioned over to yoga. I find however, that I am needing to search elsewhere (other than strictly yoga resources) for information concerning alignment and bio-mechanics of yoga asanas, but thats another topic ;-) My question: I have encountered various yoga teachers who que external rotation of the shoulders in handstands, and also, that the shoulders should be firmly 'in the socket' as opposed to near the ears.... can someone please tell me what would be the healthiest way for long-term shoulder health and stability, for holds lasting longer than 2-3 minutes and where movement of legs are involved as we transition to more advanced variations? Thank you very much!