Since you have been doing the twistaway moves - how different does your swing feel?
My guess is that it doesn't feel that different from your normal swing...if you were really doing something different it would feel difficult and odd and you would not be able to swing at 1000 mph (kph if you will) with a 7 iron!!!
Take a pitching wedge - do some half swings and slowly so that you are conscious of all the twistaway moves and sustain them on both backswing and downswing (really overdo it if you need to just to feel how weird it is to do something different) ...if you really twistaway and retain your current path then you will smother some hooks left...that will at least show you that you closed the face.
Then you have to learn to alter you path....stop the video after transition...see how your hands would have smashed Hogan's pain of glass on every shot....that hand path is the way that your crazy open clubface requires to get the ball into some kind of fairway....maybe not the fairway you intended but at least somone's fairway....
So then you learn to leave the hands at the top a little....don't smash the glass...and you still hold the twistaway...then you get your rewards...
Take advice with a pinch of salt from this well meaning englishman
I am keen amateur not some pro! but I have done my share of twistaway so I know how it feels!
Shame we have no Frenchman in the Ryder Cup this year - I liked Thomas Levet and the young french guys are even better. Good luck!