Fair enough, you are giving up the 15% performance for a cheaper ration. Glad to see that you are measuring the results but what about the things you aren't likely to be able to measure? What minerals and micro nutrients are missing and what harm will that do to your flock?no, in fact I conducted tests in different pens a couple of years ago with lot of different mixes etc. even fermented and sprouted feeds. yes the pellets from the mil have a better performance (partly because the hens cant just leave the soy!). however, its currently at nearly a grand a ton for organic pellet where I am. whereas, I can grow my own organic scratch grains, and add the organic soy, a mix like that works out at 100 a ton, with ≈85% performance of the pellets.
EDIT: you realise that you are on the part of this forum where this exact topic is discussed? what did you expect? hundreds of posts just saying "buy pellets. buy pellets."?
Get past that and I'd say find a Chinese pelleting machine and make your own pellets. Smart move if you can make a better pellet or an as good pellet for less.