The right-arm-only "hit" at :37 thru :50 with the stick doesn't appear to me to be a Hit at all, because he isn't extending the right hand through impact with the right triceps. That is just a left arm Swing with the left arm detached. The "whap" is supplied with the driving right shoulder, not the right triceps - note that the right arm bend is constant from address to the top and back to impact, so the right arm is not straightening as it must if the right triceps is employed.
What actions make the lagging clubhead takeaway not compatible with the right forearm takeaway ?
I don't know, but I can come with my thoughts ...
If we consider the MacDonald exercises, the takeaway starts with the feet, L knee and clearing of the R hip. So far this could have been pivot controlled hands. But since the hands want this to happen and immediatedly gets to work, it is still a hands controlled pivot. But the club is not picked up as the first move. The work starts from the ground up. In that respect the club is dragged up by the pivot and then the hands and that's what also happens in the downstroke.
One difference may be that hitters carry the club back, not so much drag. In that respect maybe LCT is more suitable for swingers and RFT more for hitters(?)
But I hope the big guns - like OB Left and Daryl and others would shed some light on this matter...
What actions make the lagging clubhead takeaway not compatible with the right forearm takeaway ?
In a normal RFT, the clubhead immediately starts up and in, outrunning the hands and preempting LCT. However, you could fan the right forearm up and in after the hands start moving back, in what could be thought of as a delayed RFT.
My faults in my swing have been axactly the same as yours to a tee,I discovered that it was my shoulders were not following the correct axis through the swing,to explain it ,my hips were on correct axis (or turn)my backswing shoulder turn was correct axis but that was the end of story right there,from there it was a pure and simple OTT,i corrected it somewhat straight away by using the left step and bump. But the "BIG" thought was and is turning my shoulders around my spine ....just keeping everything centred around the proper axis............its working for me...hope it helps