I'm a competitive (don't laugh) slowpitch softball player and umpire and we practice and play a lot under the lights.  The majority of the places we play are straight up garbage as far as lighting conditions go, and I find myself CONSTANTLY squinting to see.  I've tried the Persimmon and the HI persimmon, but both get a little too dark at night (even with the lights).  Does anyone have a good recommendation for a lens (for the Flak, M-Frame, or Radar) that will help cut some of this damn glare so I can see?  Obviously they can't be too dark - I need to be able to clearly see the ball so I don't get killed. :)