Myself I use all three, Yellow, Clear, and polarized Blue blockers. The reason I take all three is for weather differences, like mentioned before. THE biggest thing I look at with shooting glasses is their tendacy to fog up, if they fog they find theirself retired to the trash! I currently have been using 3M shooting glasses and I also use them at work, as a plumber, working on the Forsythe project on Ft. Riley, where their required. So after wearing safety glasses at least 8 hours a day I really like the 3M shooting glasses!!
And I'm sure you can find them in any shade!!