Tapio
I have no idea....there has been so much talk about supination, pronation my head is dizzy.....when done with range of motion none of that really needs to thought of
Moe sums it up great in some of his videos and shows it in these still snaps from a video.... This is EXACTLY what he feels when he swings.....right palm up coming down and right palm up on the way through
May not look like that because of the forces of his motion but that is what he is feeling
It may not seem it but in this picture here I am rotating my forearms open at transition start down as much as i can
From front on view it looks like this.....the club gets behind (3D world)....while retaining wrist cock/ lag angle
Give it the free ride (which is basically what is happening buy not 'forcing' the club down 'on plane')... but letting it get 'under plane'...shaft pointed outside the ball and you are more or less hitting out of your right pocket forcing the club onto plane where it matters ....into and through impact. The pressures release all the angles with the correct groundwork and body pressures.
The swing becomes something like Trevino and Knudson said....that they hit out of their right pocket..
Pocket to pocket........having no space into impact which gives you the opportunity to make space by getting 'around' and out of the way....by packing the arms, unrotating the forearms and wrists and then passing the baton off to the pivot to outrace from there so the arms stay connected and the club turns around with the motion....when done correctly and connected it all works....but you need to reprogram your system to get that spot and then know what to do with it with a lot of hard work, patience and perseverance.
Here is an ABS student....approx 10 months of work....doesn't get much better than this....shallow entry, rotation and turn on thru with ground work....BUT it doesn't just happen.... he stacks the cards in his deck by working, training his muscles so this becomes second nature and without a thought. You almost have to feel your swing is a foot in the total other direction to actually make it change about an inch....so there won't be any one trick wonders. Over time though it will alter once you do the work, maintain the pressures and become aware of the space needed to perform in
To farther add
Hogan did not let the forearms ever outrace his pivot......or that was his definitive intention....and he kept his arms connected to his core to help with this......His left armpit was smashed with his upper left arm. he was hitting hard with both hands.....elbows felt in and turned outward all helping the urge to get away and roll
Most times his release looked like this
Sometimes when he was hitting a draw or really ripping into one his arms would ever so slightly get away from him on the way thru and appear as if his foreams/hands rolled.....but that was rare
The one thing you never saw was the club rolled over and turned down at finish point....unlike what happens so often today as shown in the right 3 pics.
That's enough for this post.....guys on drill 1, 2 and 3 will know exactly what I am talking about and what is controlling the action.....and they won't be thinking pronation, supination..... they will be thinking internal pressures and connections that are the glue that allows it to all stick together.
In the Hogan comparsion pic your left arm looks deeper then hogans and his body is a shade more open?