What can I say? I'm a bit of a photographic oldster! I have always loved to experiment with films and papers. I have nearly every imaginable material in my freezer right now as far as films go. I like to tinker. I like the personalities of different films. However, with developers I have been a lot more conservative. I started with D-76/ID-11. I migrated to XTOL. I got intrigued with PMK and fell in love with it, and along the way discovered that I really like Rodinal for really slow films. I still use all of them (primarily PMK and D-76). PMK is my primary developer but I find there are some films, particularly T-grain emulsions, where it isn't my favourite. Now comes the oldster part. I have a busy life and I don't get to the darkroom as much as I'd like. (I ashamedly admit that I just processed some film from last May.) I get discouraged when I have a ton of work to do to get started on the film backlog. My PMK stock solution is pretty much immortal, and Rodinal is pretty much as good. However, by the time I get back into the darkroom after any extended time away, any XTOL or D-76 is dead (or at least shouldn't be trusted). On a bit of a whim last spring, I bought a bottle of Kodak HC-110. I'd never used it before. I'm not sure why. I thought it might make a convenient substitute for D-76 that I could mix up pretty much as needed. This was the perfect opportunity. I had nearly 40 rolls to develop and a good dozen or so were films I didn't want to do in PMK. To make a long story short, I started with Dilution B (mixed directly from syrup using an oral syringe) and I am quite happy with the results. The peculiar 1:31 dilution is really awkward when you are using metric measurements (and often when you are using Imperial or US measurements too, actually ) but rounding up to convenient numbers solved that problem sufficiently. The negatives look generally snappy (I overdeveloped some bulk Delta 100 that a friend gave me, marked "TMX" ... silly boy ) and I certainly couldn't complain about the convenience. I will be running some more experiments. And since this bottle of HC-110 is already 1/3 gone, I can see buying some more in the near future.