Yowza, Gerry! As I was typing this out, re-reading the method, the penny dropped and I totally get what you're saying. This method actually sounds really interesting to do. Almost verges on creating a blue-print of the shoulder positions. You know, I regularly say that drafting/making bespoke garments is essentially engineering for the body. Thank you SO much!!! I'll let you know how I get on with this approach but please, what is the drafting compass????