I had my 4 hens on cheap Payback Layer Crumble for a couple bags worth. Then after much research I found their egg laying, including flavor color and attitude, can and would be adjusted by a healthier feed. So I switched them over to Scratch & Peck (
http://www.scratchandpeck.com/ ). Which was pretty much strait/milled grains. Halfway through that bag it became very dusty, and the girls just weren't eating it all because it was down to a sawdust, and for the first time noticed substantial waste.
I've heard good things about pellets and decided to give them a try. I picked up a bag of Buxton Layer from Buxton Feed (
http://www.buxtonfeed.com/products.html ). The ingredients are just nonGMO veggies and some molassas to bind the pellets, all things that are real/can be pronounced
Long story short the chickens treat this stuff like snacks. They absolutely go nuts. When served with a side of free choice grit and oyster shell, my hens went from average production to full tilt. We went from averaging 2 eggs a day to 4.
I'd highly suggest pellets. They'll dramatically cut back on waste.
If full healthy good stuff, your chickens will love it and never complain.
If they turn their beak up to them, give it time, eventually they'll get hungry enough, they'll make the switch.
just my two cents
pdxfarmer