Peter Ralston studied many different styles and realized the internal guts that make them all work and also spent decades investigating what actually works for real.
His books are amazing, if you have never read them.
He doesn't advocate redirecting ( I think Yang style TJQ does that more than Chen or Wu).
He fights like a bull fighter does, which is exactly how Shaolin Rou Quan (and thus Shaolin Taizu Chang Quan) fights.
If you watch videos of bull fighters they do this leading and roll back as a simultaneous defense and attack movement, which is what real Chinese martial arts are supposed to be about at heart.
If you want to see more of what he was doing, go to his website and watch the videos there:
http://www.chenghsin.com/cliplist.html
Everything I have ever learned in Shaolin Rou Quan, he seems to do as well, so maybe he learned it too, or maybe he "gets" it from his insights and experience?