What string/hybrid out there provides the best spin? First off, let me say, I am not going to string full poly. So that's out. Also, these strings that help produce massive spin--do they detract in any way from being able to drive through the ball? I'm not trying to hit some sort of loopy, crazy-spin ball. I just want to hit a very heavy ball. In other words, I want insane spin, but I don't want the balls landing in the service box. Is there a good string for this?