[derty]

I do the same. It's definitely from baseball because that was my routine every time I stepped into the box.

I'm a huge Duffner fan, I really hope he pulls this one out.

I think you are right....I was a baseball player for many years and then softball for many more years...and the waggle is very similar to my batting stance and yes I do it too....just not as pronouced as Dufner