Hi PaulIncidentally something I have discovered more and more over the past year or so, is that no one understands the 170 from Board or online teaching descriptions. At some point I shall have to find the time to talk about different power applications between the respective casting techniques and how to use the body to it happen. That information is not currently available anywhere to my knowledge, not even on Sexyloops. For example experiencing shoulder pain with the 170 quite possibly means that it is not being done correctly. Morsie for example is using it to *reduce pressure* on his shoulder. So I know he is doing it correctly! If you can throw a Frisbee then you can 170. Of course it's possible that shoulder injuries prevent the 170, even executed solely as an elbow straightening movement.
I would assume that for tracking, you are looking at the elbow and hand being in-plane with the shoulder in your picture. My elbow goes no closer than 30 degrees inboard, my hand about 45 degrees. This is with nothing in my hand, carrying a rod will make that worse but I can throw a Frisbee in the normal fashion. How would you teach in this situation?
Regards
Vince