first of all, snowcrash, keep it simple man. my buddy tries to think like you and has had nothing but problems. canna gives you a chart, and if you follow, you will make some buds. they've done all the research for you, use the whole lineup and i swear you can't fail lol. the only other additive i use outside of the canna line is
silica blast from
botanicare. there are certain plants that end up needing specific changes and have different needs, but thats not to say these "different needs" of all those specific elements are gonna work across the board. i've tried 15 different strains with my specific nutemix, and some plants love it, some don't. soo get rid of complicated strains in ur system and grow what loves simplicity. in my case im down to about 6 strains, which is plenty to cycle thru a sog.
swiss, autowatering systems are awesome, but if u want to maybe still be hands on, create a 50 gal rez and mix up a weeks worth of nutes. 20ft hose on a pump and a watering wand. i love being in the grow room, but not for hours.