I have come up with another simmilar method inspired by Daves move for when the diabolo is moving with too much pace to hover easily. Basically let the wraped diabolo go over into a LH handstall, pop the free diabolo up, clockwise sun (whilst still holding the handstall) under the thrown diabolo, resume shuffle.
3 methods to choose from.... great topic! Especially like the knot stealing, and it looks like a trick in itself which is nice. Need a bit of practice though...