So the correct joint articulations cannot be done unless the bat is flying full speed? No way to isolate this part of the swing and slow it down to "feel it"? No way to start at a pre contact position and mimic the downstream movements?
No version of this for hitting?
it seems like you sometimes just make up opinions to be argumentative without actually thinking about what you post.
One of the points being discussed is the backchaining from extension to point of contact. If we are looking at BM's demonstration, it would be from the point after IR (very end of the clip with his lower arm pointed at the catcher and his palm down) to the point of brush (or thereabouts...). BM's demonstration would be more applicable to backchaining POC to launch (when compared to the swing). At least IMO.