Hi, welcome to BYC and fermenting!
I won't claim to save 2/3 of my feed bill... but I do save some, my birds, like it... and the nutritional benefits are real.
So did you get the basics from that link? Feed, water, stir, wait... feed it out.
Avoid the whole keep the water 1 inch above the feed, it makes for a sloppy, time consuming mess. Just mix to about the consistency of oatmeal.
To me, the real indicator that your ferment is successful is that soupy layer near the bottom. The bubbling is a good start. But that soupy layer near the bottom is my holy grail so to speak. Doesn't make it reality, but that is when I know my ferment is good and going. The amount of days it takes can depend heavily on your climate. And some birds don't act like they love FF when you first introduce it. Chickens are creatures of habit, so anything new is a bit odd. But give them the chance to adjust and it won't be long before the gobble it up.
I don't blame ya for not having the time, energy, or desire to read the whole 780+ pages of the thread... but if you have more questions, please don't hesitate to ask! Just the difference in poo smell was enough to convince me to stick with it.
The bigger the flock, the bigger the savings... So go get more birds!
Oh, and beware of chicken math... 1+2 = 48 and 48-3 = 56! See how that works?