In Disc 5 when discussing "monitoring the hands", TT breaks out a stick with two flashlights attached to each side to demonstrate tracing the plane line with the right forearm (probably the first ever version of the "smart stick".) TT says that he invented it, showed it to Homer, then Homer included it in the next edition of the book.
Something interesting regarding takeaway appears on Disk 5 as well. TT says, "Pivot controls the backswing, Right forearm controls the downswing". He makes that statement a few times and says that is the easiest way to do it. He makes the statement when discussing "monitoring" in 5-0.
Question for DG or anybody else who had the pleasure of having lessons with TT. Did he teach a right forearm takeaway???
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He taught... Right Hip starts very slightly first(clear the hip), then the right arm pickup. "Right hip/ Right arm, then Right arm/ left hip...face the target."