Gonna be honest, I have not really stuck to anything like that yet. They all seem to be geared for coco. To make it work with DWC, I'd be draining the tank each week or so. That's a lot of nutes down the drain. Instead, I have been slowly increasing the numbers in the new solution I use to top off the tank. It's worked in the sense that I have pot to smoke, but I am curious to try the more wasteful approach to see if the yield improves. I am pretty sure it will, the question is by how much.
Getting my hands on DI is a pain in the ass if I don't make it myself, and I can make at most 4L every 6 hours. I try to use as little as possible.