I'm so sorry to hear about the low chick viability numbers! I haven't had that issue - yet. I'm keeping my fingers crossed that it's not a problem... I just stuffed the incubator full of Isbar and Blue Marans eggs last week, so I'll have a test run very soon. Rinda, do you have a backup roo? I have eaten a few of my excess Isbar boys, and while not a beefy as a Marans they are quite tasty. My favorite part of the breed is how wonderfully friendly and tractable they are... I have NEVER had an active breeding pen where I could add an additional rooster. I've done that in my Isbar pen twice now. The boys are terrific, and the hens are sweet as pie. Everybody is curious and forward. They are easily my favorite breed!