I've got a bunch of gold 200 and superia in the fridge that probably will never get used... anyone ever tried to print through the orange with an enlarger? Hmm I wonder what different filters on the lens would do?
Edit... actually now that I think about it, I wonder what the orange would do! I usually print on VC paper and the orange might block virtually all of the blue light. Probably end up with grade 00 prints....??
As I mentioned... I think that's why you have to over expose 2 stops in order to compensate fore the orange mask.