@ Androth, yeah, the switching between systems could be difficult at different stages. I'm going to have to flush my Lil Bee much earlier than the others, I'm gonna pull her out and into a shoebox that takes up her original space in with the plants. That's what I'm gonna have to do, with soil I'm worried I'd shock to much and it would take longer to flush correct (complete thought process not backed). It'd be neat to see if your method worked well too. Almost for what your wanting to do, it would seem ideal to have two or three smaller systems on the same pump.
@CDC, your's may be hotter. I need to see at what ppm a high dose fo grow masters runs at for ppm and you can find out your ans the difference should tell us how "hot" the difference could be and it would be super nice if we could do that between nutes so we know how much ppm difference we should account for between nute brands to get similar results.