I also like Chamblee and joined this site because he mentioned it. I'm an older guy and have seen many putting styles come and go. Both he and Duval mentioned the piston style of Jack, and Jack was pretty good. They also talked about the concept of releasing the putter head, and I'm not sure if those are compatible with the "drop" stroke. Frankly the science was a bit much for me. I've always thought putting was more art than science, as I have had long streaks of good putting using various styles over the years, including cross handed. Trevino preached moving the ball back towards the middle of the stance, which stands in direct opposition to what I've been reading here, and Lee was pretty good. Every really good putter I've played with is rythmic, and that seems to be one constant among various styles.