Against a top player, the best play is to pass your turn.
What? Pass your turn? But… the vulture can then win by playing ANYTHING! Yes, they can. But vultures are not only interested in winning, they are also interested in winning by as many points as possible. By passing, you are sending a clear signal: the Q is in the bag, and I am going to make you draw it. The problem for the vulture is that if the Q is in the bag, the vulture is in a lot of trouble. The vulture is going to have to eat the YEN play at o2, followed next turn by ZONE o1 for a whopping 87 points. If the Q is in the bag, the vulture would clearly be better off passing back, and ending the game on the 6 pass rule, as the vulture would lose by a smaller number of points.