A light yellow or light rose tint lens. I like the Smith sensor mirror lenses and in the worst white conditions I like the yellow sensor mirror. I really want to like, and need to give it more time, the red sensor mirror.
For me, if I had to buy one I'd buy either the yellow or rose sensor. Bluebird doesn't bother me as much as white out conditions.
Agreed, I can see fine on bluebird days with my yellow lens, but I can't see shit if I had a dark lens on snowy/overcast days.
PowderHound and TreeNinja