Yeah I used the wiki (http://wiki.arcadecontrols.com/wiki/Spinner_Turn_Count) which is incredibly helpful, but I guess the spinner just spins so smoothly it still makes it very sensitive. I saw the upgraded spinner knob on your site with the larger diameter knob and the felt on the bottom to slow down and make it have a little more friction, so maybe I will have to try that. For super sprint however, the smooth rotation is great. That's why I was looking for the page that listed free spinning vs more static spinner games.
One thing to try is reducing that number even more than what is shown there. You are using the basic knob, which is smaller in diameter than the knob intended for use with that game. This makes the controls more sensitive than they would be otherwise. Doing this may be enough for you. BTW, can you imagine trying to play with one of those "long spin time" spinners with the heavy flywheels?

But yes, for a more "gear-or-potentiometer-like" control, the Accu-twist option on a premium knob is the answer. Simply letting that knob rest on the pad and tightening it will give you the feel you are looking for, without making it harder to turn.
As for the free spinning games, there are very few. Racing games benefit from it, and of course Tempest. There are probably one or two others, but I honestly can't think of more. The rest seem to be more interested in precise control than momentum on the spinner.
RandyT