disfromage said:
I always go directly from the fix into the selenium toner without washing.
I understand that this was a recommendation made by well known photographer(s) but I don't think it's a very good idea. You may get unpredictable stain due to some silver dissolved in the fixer solution. This silver can react with selenium or other toner in the gelatin layer. All it takes is a quick rinse, a matter of seconds (RC) or minutes (FB).
I used TF-4 and now use Ryuji Suzuki's Neutral Fix with equal success.
Alkaline fix can also reduce the possible cause of staining.
Also, an improved version of my neutral rapid fixer is now available from Digitaltruth. It's called Clearfix Alkaline. One main difference is that Clearfix uses a better buffering agent so that it doesn't get acidified easily even if acid stop bath is used.
Back to the original issue, I don't know about new batches of Forte Polywarmtone. However, I can say that the aging stage for b&w paper emulsion is usually not a requirement before dispatching. (Some color films in old days used this technique to adjust the color balance between batches.)
Greenish tint of warmtone paper is a common problem. If you want warmtone results without green, you should use *real* warmtone developers that require 5-10 minutes to develop. AGFA 120, etc. Warmtone developers that use Metol or Phenidone are only semi-warm and they are more likely to go green. Another approach is to use a standard or coldtone developer and tone the print in polysulfide toner.
I use Fortezo for real warm images, and I bought a pile of Agfa Multicontrast before it went away...