I am working on the handstand fundamentals course and because of years of weights, my shoulders and arms are extremely stiff. It has taken me six weeks of hard work to loosen them up a little. I was currently stuck on progression 2/3 of the handstand mobility which is to raise arms behind you for a static hold, and then for 5 reps. I have taken this video today as I think I am ready to progress to the next one, however I wanted to get feedback on whether you think this constitutes acceptable mobility for progression 3 to advance?