I hear ya, but again I believe AP did receive instruction. Do you believe AP did not receive instruction or was told how to improve his swing prior to video? I think all of that is very unlikely.I didn't mean to imply that that was the actual first time he was ever asked about it. My point is a lot of these guys were not actually taught their swings, e.g. nobody said you need to do this and then this and then this. Without that sort of instruction, when somebody asks about your swing you are going give an answer based upon on how your swing feels and what your mental queues are, which may not necessarily line up exactly with what the actual swing is doing. W=w likes the demo and he seems like he has had success with his DD using it, which is great. My only problem is that when a demo/instructional video requires additional insight in order to use it properly it can be an issue.
Also I can see what W=w is saying in the video he posted, the knob does seem to initially start towards the ball. The demo itself can be very confusing, but like others who demo, including fat old men this is not uncommon.