I think not many people use pyro for paper because they think it is only a stainning developer. The properties of pyro as a paper developer are very similar to amidol, it is a very active developer that develops from the "top" as amidol is said to do. When I mentioned this I was thinking on the formula I saw in the developing cookbook, but I have seen another one in another book, I will look it up and send you the formula. Just dont give up on it right away, I get the feeling you might get a very workeable developer a lot cheaper.