You'll get better results out of the coco, but it has to be dialed in perfectly........ promix is way more forgiving, and small fuckups won't impact much if corrected in time. i've shown you the results that can be had, with not too much work. Many growers over-complicate things, and make things worse. Keep everything as simple as possible- clean water, simple fertilizer, no stresses, and flower for a long period- it's a friggin weed, leave it alone, let it do its thing. Weeds have grown in the wilderness without help for millions of years. More is not necessarily better when growing.