This is my fifth roll of B&W and my first time trying HC-110. I was not pleases with Rodinal and Tri-X I used before because there was simply too much of the wrong kind of grain for my taste. I took two rolls tonight and I need some help. Roll # 1 was rated at ISO 800 due to lack of light. The Tri-X I'm using is ISO 400. So, I guess I need to "push" one stop with the developer? Roll # 2 were 5-30 sec. long exposures of water. I wasn't sure how to compensate with Tri-X for reciprocity law failure, but I guessed rating it at ISO 160 might be good. Maybe I should have made it simple by choosing ISO 200. Can someone help me come with the right dilution and development times for these rolls. Thanks sooo much!