Hi,
Can I go to HS step 2 without mastery of HS/PE1 im? I'm struggling with the full shoulder flexion but I have seen that is not required for HS/PE2 so I want to move on until I see that I'm stuck because of the mobility. I promise that I do HS/PE1 im several times a week, I do almost full thoracic bridge course every week (I can't do bridge hip taps and I have to scale down the other bridge related exercises), and I work on the shoulder flexion every night before bed! And I go to the pt every 2/3 weeks with a 1 hour session working on this!
BTW I would thank any kind of extra routine regarding shoulder flexion you can suggest, the one I do is foam roll the lats, butchers block stretch, elevated cat and inverted cat. I'm gonna send a video of my current HS/PE1 im soon so you can see my level.