I think I am experiencing this to a degree. After taking my breath with the backswing and working to allow the air to naturally move out of the body and into the instrument I find there is quite a bit of air high in the lungs that just won’t come out with some sort of serious engagement of the body’s muscular structure. It does not cause any choking per se but I’m sure the tension it causes is a big negative. So how much air just won’t come out with passive effort and has to be actively pushed out? If this is necessary, where should I be feeling the active “push?”