I haven't used this stuff for quite a while and I don't think I used a reformulated version so take this with a grain of salt. Agitation is critical with most staining developers. You have to figure out a method that works with roll film and for me that meant one agitation cycle every 15 sec. That may or may not be the case for your situation. Another thing is to used distilled water not only in making the concentrate but also in the working solution and in the presoak. And lastly, I add a pinch of EDTA for every liter of working sol developer. I don't know much about this but this has been my experience.