hi Brian
i don't think i have make myself clear to why i don't believe this, it not as you have just said about muscles resistance it how he put this down to how it happens and how that in "grippers" you will get the yips and "no-grippers" wont. i don't agree to how he sees the difference, the two pictures you showed of Hogan and Trevino do come back very close to how thay started but the right elbow is lower than the left and still bent as is the right wrist so it would mean that most of any resistance must be taken up in the left arm or at least a lot more would you not agree.
if your a two plane swinger then you will stand taller and your hands are higher at address a one plane swing who will have his arms drooped more as he bends the spine more at address and you get the same effect as grippers and no-grippers in the impact zone.
the two plane swing comes in with higher hands and a shaft that is more upright than a one plane swinger who's hands are lower and comes in with the but of his club looking at his belt not few inches below his chest.
cheers
bill

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