When I was in college (UC Davis) I had an excellent professor who suggested adding a 1% benzatriazole solution to HC-110 for processing my HP5+. I haven't done this in a long time and I can't remember how I was supposed to do this... My best guess was that I was supposed to do this to the stock solution and go from there. I do remember excellent shadow detail from doing this. How does this sound? I take benzatriazole powder and add it to the stock solution so that it's 1% by weight. Does that make sense? Is there a better way to go from a dry powder to a liquid by volume? I would then use solution B. I appreciate the feedback!