I wish he'd explain why keeping hands ahead of the ball is fundamental. Anyway, I always thought an offset putter helps to decrease the exaggeration of a pulling (arc) swing.
Just logically thinking: If your at address at 12o'clock and finish your putt swing at 10 o'clock:
If your putter head is behind your hands, then it will never get to the 10 o'clock position, thus decreasing (not necssarily correcting) your pulling of your putt shots.
So, I got my new SC mid slant and it's a half offset, as opposed to my old Odyssey which is a full off set. With the SC, I pulled everything. I was just all over the place.
Sending that one back for the full offset Select #2.