Having played with emiller before, and having watched him throw OH's I can confirm that he may know what he is talking about. My experience differs slightly. Stability is by far the most important factor in throwing an OH shot. I throw my Nuke OS further than any other disc on the market for OH shots. It is comparable to an Ape, but I prefer Discraft to Innova (this is merely a personal choice). I also use a Force and Predator for OH shots. At one point in time I threw my Vibram Ascent OH but found I had less control as it was not as overstable. It was comparable to the Predator on distance. That really makes my argument null and void but that is my experience. Like has been said before, the stability really determines how long it takes the disc to go through its normal flight pattern. The more overstable a disc is the longer it will take for OH shots and thus you get more distance. Smoothness and the cleanliness of your release are way more important for distance than brute strength. It is also a specific muscle movement that you need to train, a similar movement to pitching in baseball. Thus a pitcher will be able to throw OH shots better than most. All the guys that can throw OH shots longer than I can played baseball at some point in their life.
