I have been working on my form for SLP PE1. I don't know if I have actually improved.
so, the problems I see are: I don't have very good retraction, I lose connection in my core during retraction, I can't get my knee to the ground in my mobility. There might be more problems, but these are the ones that stand out to me.
I have been trying to treat some of the finer points--hand position (directly underneath shoulders vs slightly wider); hand rotation (fingers pointing forward vs to the sides); squeezing my shoulder blades as hard as I can; trying to squeeze my butt and my core together. However, I can't seem to get my shoulder blade closer together without losing the tightness in my core for a split second at the max retraction. I feel like my anterior shoulder and chest are really tight, and I lack mobility to achieve maximum retraction without "taking" some mobility from my core. Or, maybe my strength is unbalanced, and my upper body easily overrides my core.
so, I am looking for advice. I am assuming that it is extremely important that I don't lose my core connection throughout the exercise and if I have to sacrifice some retraction that is better than letting my back sag, even if it is just for a moment. Should I stay at step 1 until I can get better retraction? Is my retraction ok as it is, and I can keep moving through the steps? Obviously I would have to stop at step 9 until my mobility is satisfactory.