I prefer the repro glass in this case, the skin tones look much more realistic than that of the original.
If you read this thread...
http://pinside.com/pinball/forum/topic/bgrestocom-how-does-their-work-look#post-1203032and see the posting by Clay (cfh), where he says...
About a month ago Steve changed the coloring process for the shine-through areas to have increased color saturation. Now it's very difficult to tell a silk screened BG from one of Steve's, even when lit up. The whole process has evolved and now I have to say, it's pretty darn good.