Funny that another post said exactly what I was thinking when seeing John's break. When watching the WPBA this weekend on ESPN, they did a little piece on the breaks of the women playing and showed slow motion clips of their breaking styles.
Seeing John's break was remarkably similar to Xiaoting Pan's break. Same type of follow through and finish. Guess that's why they both have such stong breaks even though they are not King Kong. All boils down to timing and repeatability, they do that very, very well.