Hip / shoulder position at and beyond impact is influenced by what force you are using to trace a staright line before, during and after impact... no??
If you have a bit of active pp1 then you can ( and should )trace your line with less pivot action... if you achieve staright line tracing with passive right forearm then you need lots of pivot...
At least that is the way i see it...
NOW ... if you do not pivot enough to trace a straight line AND you do not have enough active pp1 then you swing right and bend plane line... maybe...
This sounds more confident thani feel i have knowledge for at moment ... so wait for others....
