Quoted from MrBally:Virtually all the ones being produced for the last two+ years are perfect regarding color and lighting.
Remember, when you are dealing with unobtainable glass and bgresto can make something that is 95-100% appearance wise as an original you should be happy bgresto came into being.
As Lee Iacocca says; If you can find a better backglass; buy it.
I may end up using him for Charlies Angels, if I put the money into restoring mine someday. Those Sys 1 glasses nearly always flake to heck.