I'm a big fan of the V1 tint, especially for outdoor use. Whomever came up with the 'vanilla' description is right on. An excellent way to chracterize the tint.
Out of curiosity, I decided to go with the XO tint at the last second just to see what it would look like. I figured that with the removable heatsink I could change out the LED if I didn't like it.
As this is my first XO, I'm not sure all others are like this, but this one is very nice!! I was expecting some blue to find its way into the beam, but there is none that I can see. Usually lights with blue tints make flourescent items stand out more, turn reds and blues slightly purplish, or make browns look darker than they are to me. So far I can't see any of these color shifts. Even my WOs look purple in comparison. I'm quite surprised!