Hi, Thanks for all the useful replies. Steve, are you suggesting that we use the dilution you posted? Are you certain that the Gainer formula is 1:6 not 1:14? Just checking. Ryuji, thanks for all the information. I cannot address the issue of HC110 formula possibly being 'modified' by Kodak throughout the years. I've not seen any difference in my negs and Kodak denied to me by phone that there had been any changes....but who knows for sure? (The one emulsion I KNOW for sure they have changed is Kodachrome 25. I cannot even begin to approach the quality of slides today, that I got in the '60s! That film gave absolutely perfect color rendition in the 60s! When I say 'perfect', I mean the colors were 'as is', not jazzed up the way some slide films do today do. Kinda like listening to a high-end stereo and them turning the BASS and or TREBLE way, way up. In the 60's, 'what you see is what you got' on slide. I can easily make 13X19 prints today from 35mm slides developed in the 60s.) And, Kodachrome 25 slides from the 60s are still perfect in their color rendition. They show no signs of degradation at all. Kodak told me, at the time, they would last for at least 50 years.That figure has to be WAY conservative since they are now 40 years old.) Using dil. B and Tri-X, the grain is so fine as to not be visible in any reasonable enlargement from 6X7s. That is what I meant by 'incredibly fine grain'. I guess that term, in truth, should be reserved for a film such as Panatomic X, which I used for many years with great pleasure. Thanks! Howard(posted 8270 days ago)