You lose me when you say you don't care what todays Tour players are doing. The fact is for the most part they don't collapse their front knee towards their back knee. If the best players in the world don't do it that says a lot IMO. And lifting the left heel is an optional thing.
I prefer to observe what the best ballstrikers ever did and not what current best players do.
Lifting the heel can be optional only if you treat it as a conscious action. It happens unintentionally as a result of correct sequencing in a biokinetically correct motion for a biped. Thus, it is not an optional thing. If it does not happen, especially with long clubs, it means something is not correct, period.
Try hitting a driver while on your knees. You'll find that weight shift is very much over rated. What you'll discover is the more stable the lower body is the more consistent your ball striking is. Letting the left knee collapse toward your right leg makes your lower body more un-stable, thus more inconsistent.
Can you hit as far from your knees as from your feet ? I bet no. Hitting from the feet gives more opportunity and requires different actions because of two more joints in both legs. It requires a proper weight shift to maximize one's potential.
As said in my previous post the balance in both anatomical planes are being achieved properly ONLY when one side of the body is inertial and the other active. Therefore, your claim that letting the left knee collapse toward your right leg makes your lower body more un-stable, thus more inconsistent is simply wrong. Sorry.
I'll stick with what the Tour players do and you stick with your studies. There's theory and then there's practice. In theory the front knee collapse toward the back knee may make sense to you, in real life practice it does not. If it did, you'd see more of it, which you don't.
Stick with what you wish. And if the lead knee bending inside made sense for the greatest ballstrikers ever, in their practice in winning tournaments, how you can say it is a theory only ? Think !
This is an interesting point for me and I would like some clarification. First I don't believe Dariusz is advocating a "collapse" of the knee but rather allowing it to react and "bend in."
Exactly this. If the lead side in the sagittal plane is passive and inertial the lead knee must bend inside when we need a correct deep hip turn during the backswing. Bending the leg forward and not allowing bending it inside brings unnecessary tensions and reminds me dreaded X-Factor silliness. I do not know what "collapse" means either.
I agree that they are talking about two completely different things.
I am talking about the knee bent to the inside (towards the rear leg); I suspect Keefer talks about knee bending forward (like they advocate e.g. in S&T swing). The difference is obvious as well as effects.
Cheers