Is John using a 10-2-B or a 10-2-D grip? The image of the "cupped" LW at the top of his swing during the "irons" segment sort of had me go . To me if looks like his LW is rolled considerably on top of the grip at address.
I understand 10-2-B to be a more "neutral" grip compared to John's and one in which the LW would appear to be visually "flat" at top (which is what I try to do). Am I wrong?