I looked at a minute or less of the one video, and haven't heard it at all yet. I'm at work, "pretending to work" (like our friend Liz), have no speakers on my workstation, and wouldn't use them if I had 'em. So, my comments were based on visual observation only.

In the part I watched, he doesn't seem to be using his right hand at all.

I do understand what M.Ted tells us about his plucking the string (surruptisiously?) with a left-hand finger immediately before hannoering/pulling. Seems unnecessary from a musical point of view, simply a matter of showboating.

No denying the guy's skill, of course.