Yeah, dude, I'm doing all that. Fulvic, TM7 twice a grow, coconut water if I don't have time for a corn SST, aloe, K silicate. I guess I forgot to mention that. I don't use any kind of schedule because my results are always stellar. Good enough for me, anyway, and good enough for anybody who's ever blazed my weed. It always turns out sticky, stinky, smooth and stony.
I've used three gallons and seven gallons in the past no problem. In fact, that's all I've used. It works fine. I've considered no-tills and probably will use that method at some point in the future, but that won't be for a while. Coots mix isn't strictly for no-till. At least it ain't for me. This is the first time I've experienced any sort of issue at all, with the exception of my first grow using his mix, which is when I experienced my first Mg deficiency. A simple epsom salt drench fixed that right up.
Believe me, I've read and read and read all that stuff. I'm aware of those schedules. But I don't like schedules haha! I do things when I think they need to be done and it's always worked out pretty well. And I have a big-ass bag of barley and corn sitting around. It's gonna get used whether or not SST's are "obsolete." They weren't obsolete a few years ago, not too sure why they'd be "obsolete" now.