Thanks for the shout out.
Yes, I have been sprouting barley for the past 3 to 4 winters. It takes me less than 5 minutes per day to flood and fill my barely tower.
I have not been following this thread, but I did notice that there was some posting that sprouted barley reduced egg laying productivity. After careful reading that screenshot, I noticed that they were giving up to 46g of sprouted barley per day per hen. Let's stop there and consider this...
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I only feed sprouted barley to my chickens in the winter months, when we are snow covered for up to 6 months, because my chickens do not have access to any fresh greens otherwise.
I only feed sprouted barley in the winter, when egg production goes down due to our short daylight hours, so reduced egg production happens to me regardless.
I don't advocate using sprouted barley as a main feed. I use it more as a "treat" or "green supplement" to their commercial layer feed during our snow months. I did a quick calculation, and my daily sprouted barley comes out to about 10g per bird. That is only 10%, or less, of their daily intake. Again, I consider it a green treat.
My chickens seem to enjoy pecking and scratching apart the sprouted barley root mats I toss into the chicken run and/or coop. Some chickens like to eat the grains in the bottom of the root mat, others like to eat the blades of barley grass, some both. Frankly, it's about the only scratching and pecking my chickens can do in the winter months because everything else out in the chicken run is frozen solid.
The reason I continue to supplement my chickens with sprouted barley in the winter is because the egg yolks get a darker orange color. If the hens are only on commercial feed, the egg yolks get a brighter yellow color. We sell our excess eggs to people who appreciate the darker orange egg yolks compared to the pale yellow egg yolks of commercial eggs at the store. They think a darker yolk means a more healthy egg. I don't know if that is true, or not, but they are buying the eggs and that's what they believe.

Honestly, I think a darker orange egg yolk looks better and tastes better. But I could only be fooling myself.
My commercial feed consumption goes down a bit when I give my chickens sprouted barley, but that is not the reason I give them fresh green barley grass in the winter. I just want them to have access to fresh greens in the winter.

Again, a well-balanced commercial layer feed is what I use. Sprouted barley is only used as a green treat at less than 10% of their daily intake. With the tower system I use, I spend almost no time per day growing barley sprouts. For my minimal efforts, I get darker colored egg yolks in the winter and the chickens get to scratch and peck for some of their food. To me, that's worth it.