Here my updated spreadsheet with weights from this week.
https://drive.google.com/open?id=0B8In3P9Jq5XKUEtWbnJvVnpXXzQ
Overall growth weight dropped from about 40% to about 20% which seems like it is just a bit too drastic. Perhaps it's just human error and im doing a poor job at giving them enough food. I must confess i have been very occupied with work and building this coop that there are times where they go a bit longer than i'd like getting their feeder refilled. I am going to go another week with the same feed and if the growth rates don't go up, i'll up the protein content a bit.
Delaware are still definitely the smallest for me. The Australorps and New Hampshires are still neck in neck, excited to see if one starts outgrowing the other as they mature more!