Quote Originally Posted by cmacd123 View Post
My alternative would be to try and mix some variant of the C-22 Formula, but I only have some old CD-4 and again I don't know where I could get some CD-3 sent to me because of the cross border chemical mail problem. To do that I would need to know a conversion factor between CD-3 and CD-4.
There is a reasonable chance you can get RA4 chemistry, and its color developer is a CD-3 based developer which you can modify to your needs. If you get one of these home RA4 kits, they even have one part which is mostly CD-3 ...