Maybe it's because I am a soil grower but I have tried three parts and I seem to do just as well with a one part. I will use something like a soul bloom or a general Hydro Flora Nova bloom or a dyna Gro bloom and I tend to be able to get the same end results. Is that because I am not properly experienced with a three-part? Have I just not made myself familiar enough with a three-part compared to a two part or one part nutrient? Or is it because I'm not running synthetic nutrients completely. I am actually more organic oriented than synthetic. I would say it is an 80% 20% ratio.