I really like the persimmon lens for end of the day running sessions. I also use it a lot for nite car rides. It helps not being dazzled by the car lights coming in front after many hours of driving. With persimmon lens, white things appear light orange which is relaxing for the eyes, less aggressive and less tiring. It gives a feeling of brightness and makes things really smooth in general.
There use to be a darker "persimmon" which was in fact called "rust"... which was available with eyeshades, razor blades and also early M Frames. That one is a bit harder to use I feel, it is really quite dark.
Difference between both colors:
./+A