Got my last ones @ Optics Planet-free shipping over $29.95-Google "Optics Planet Discount Code" for easily found 5% off codes.
I seem to be getting more and more stuff from Optics Planet-DeSantis holsters, Streamlights, LaserMax, etc.
I thought 'bout going different colors for front/rear, but the Trijicon front sight is bigger/brighter than the rears (don't know if they've always been that way). My eye is naturally drawn to the bigger/brighter front sight-that being the case, I use all green.
BTW-Trijicons have the date they're made printed on 'em, so check 'em to make sure you're getting new stock.
I've got an old Sigma with Trijicons-12+ yrs old, and while they don't jump out at ya like new ones, they're still usable. Don't know that I'd pay the money to replace 'em yet?