In my years of doing this, yes silica helps, the order in which it's put has made no diffrence.
That video was hardly scientific. I bet if you added the same amount of each in reverse....Anyway, I've never had an N lockout due to anything besides a broken meter, (so use 2). Idk about you, but I'm always topping off my rez after each feeding, so silica is already present. Add an air stone, let it sit at the 2 ml, and it mixes up fine. Silica is already in the solution to start. From glancing at the bottle, that was CE Silica 2 ml
I use it last most of the time, especially if my ph is a Pune hair low.
If it works for you, and you get results, that's all that matters.
Yes, I always do add Micro before Bloom when using the Lucas Formula. I always have. I'll try bloom first next time, but I doubt it will make a gram of diffrence in yield, but never tried.
My order. Lucas
PH. Micro 8
Cal/mag. Bloom 16
Base. Depending on strain
Silica 1 ml cal/mag
Drip clean
I'm looking for well over 2 lbs per 600. If pissing in my rez doesn't work, I'll give marshmallows a shot. They float too. Even the ones in Frankenberry.
If what you're doing is giving, or surpassing your expectations, no need to change.
I'm with 6 string on this