What you see in that bucket is 100% layer mash, milled at the local co-op...they don't even specify what grains they put in it, just list the crude nutrients available and what type of protein source they use~soy or animal. Cracked corn, oats, barley, etc. are easily visualized in the mix, but the finer ground ingredients are a pure mystery. I don't think about it much, though I won't buy layer ration with animal proteins in it.
In the winter I mix some barley grain and BOSS into the mix to cut the proteins down~though now that's a moot point with the FF...kind of hard to cut down proteins on this stuff~ but that's as fancy as I get into mixing my own feeds. The layer rations have been formulated to provide the needs of commercial layers and to keep them laying all year round, so if it's good enough for those high production birds, it surely has sufficient nutrition for my DP layers.
Feeding both dry and fermented feeds, though better than just feeding dry, will not yield the maximum benefit of feeding FF...if you are going through the trouble of fermenting some of the feed, why not simplify by fermenting all of it. That way, your chickens can actually digest your current dry ration better and won't be pooping out that money on the floor of the coop, there to lie smelling badly until it attracts flies.
Why not mix your milo(sorghum) with the finer ground layer ration to give it some texture and body and to give the milo what it is lacking in nutrition and feeding them both at a thicker texture so that it isn't mushy/soupy? That takes all the extra steps out of your routine of making pancakes, fermenting one type of feed and not the other, etc. Just dump them all in a bucket and make life easy!