One other thing I would shoot to someone banging a UC for the first time is to do a run with a straight ro top off and take notes as to how much and when your girls eat. Watching the ec the first round or two will let you not only dial in the system but also know how your strain eats from your system. That way the next round or two you can go back to your notes and see at what days/weeks your girls ate the most and what days/weeks they ate softer and then you can add to your top off A&B to an ec you know your girls like and can handle. The problem with running a hot top off right away is that you don't know when your girls will want more water until they tell you. I like to try and read my bitches before they talk back... With a ro top off, You know if your top off has been attacked and your ec stays the same they drank more h2o than nutes. If your top off was attacked and the ec dropped heavily they ate nutes more than water. If your top off is not attacked and ec rises you're too hot with your mix. If your top off is not attacked and ec still stays the same I liked to lower my ec a little till I see the aggressive eating from my top off I like. When I do run a hot top off, Ideally if I can get my girls to attack my top off and not change my ec, to me, that means my top off and stew are set at a perfect match. Notes notes notes....