I gotta admit: I watched the youtube vid several times and still not entirely sure I am looking at the right thing.
Does the creep come at the end of the back cast?
I did notice (after you pointed it out and I was Really looking for it) that his rod kind of creeps forward at the end of the back cast stroke. Would I have detected it otherwise? nope. Could I recognize it in anyone else's stroke? probably not.
Thanks a lot Jim..... Now I've something else to be obsessive about with my cast.... =)
//Edit// It almost looks like he is just starting his forward stroke without the acceleration part of the cast.