Yes but it will work better than if you leave the two pawls in, it would skip a lot and destroy other two pawls quickly, if you take em out, at least you can have them as a spare
I just don´t understand how relaxing only one hand would help And what I mean is this is not going to make you sidehop 10inches more or anything, all it might do is make your forearms less sore but I´m not that sure about that either.
Weird thing about your guess is he does it only with his left hand,hmm...Does it matter anyways? I don´t think it´s some kind of magic trick that is going to make you ride like him.