I use local mash to feed my layers, but I also know that everyone around here sprays their crops, and probably use gmo seed, so not so sure it is any better than commercial feed.
But I may switch totally to the fodder, but my chicks are all free range, so I may not use fodder so much in the summer. May add a little layer mash to the mix in winter for variety. I'm looking forward to seeing if the fodder changes the taste of the eggs. Does anyone notice a diff? My yolks are very deep orange already, but I think some of that comes from the free range. I'm no expert by any means, just my opinion. I have a friend who has the feed mill mix hers to a specification, so I'm going to ask for her mix next time I buy feed. I want to add flax seed to mine also. I'm just going to experiment this summer and see what happens. Going to try to plant a "chicken garden" in the pen this summer. I sound really ambitious, but will see.
Sometimes my "want to" is a lot more energetic than I really am.