Thank you Corporal!
(And Sky, there's a video link in the first post ;))
Yes, my trainer said once we get my saddle figured out and Roxy more in shape we'll start working more on my position. She mentioned doing a lot of two point and posting without stirrups.
I love working with ground poles - and I can tell that Roxy loves them too. I think they're great for her stride and loosening her back.