Sounds good Josh. Regarding the video, no-one will take the piss around here.
Those form pointers were my own, things that I would get you to watch for if we ever trained together. You may have a different set of pointers but the best way to know is that video!
To answer your question, I'm very inflexible around the hamstrings/hips/quads/calves. I wasn't always but that hamstring injury I suffered in 2007 really screwed me over in that regard. So I tend to stretch, quads, hamstrings, groin, calves in that order.