Supinate vs Pronate

I had to hold the camera in one hand lol...but yes I intentionally separated it from the other components (forearm snap+body rotation) to make the mechanism clearer. But I disagree about the range shown being too large, if you combine it with the entire swing plane (imagine the pronation being done throughout the stroke), it looks a lot more subtle, I can have a stroke with pronation/supination and one without, and they will look almost the same. If you look at for eg Ovtcharov's BH loop and compare his blade angles between start and end, his range of supination is even larger than what I shown here, especially against underspin. 

In general, players who spin with more brush rotation are often not able to get to the ball consistently enough to bring their power to bear on it and when when they do, they may lack the energy to generate power consistently.   It isn't so much about a technical approach to contact as it is the ability to swing faster and get spin with speed.  It is also difficult to get to the ball consistently on time and if you get to it late, unless you have good knee-bend and stay low, you will need to arc the ball to stay safe.

If you are contacting the ball more solidly, that is a good thing for consistency.   But if you want to hit the ball consistently better, the path is usually to get a faster swing into the ball more consistently while swinging in a curved path over the top of the ball.  But I would argue that the issue when you brush too much is that you don't swing fast enough consistently and not that you are not making solid contact.  Once most of your loops use fast swings, you have reached a different level of play.

Agreed, I have the same contact especially for forehand counters

I was told that the brain can't act  so fast to rotate the paddle at contact. I answered to that it is true only if we start rotating the forearm too late but if we do so before right contact, it happens just fine. 

I'll try bringing that conversation back, it was interesting.

Needless to say I am still convinced that you are right and it's a valid way to go.

Im currently usind t05fx and was using t05 beforehand. Both of them I felt that I have to close the angle of the bat a lot when trying to kill the point and ended up hitting a lot of edges. Now im also having problems doing  full arm swings and definition points, I dont know if its bottoming out but its flying a lot.

Would a harder rubber be easier?

Tenergy is good only if you need the rubber to help you out in power...