Sound about right. Our experience with chickens is that it is always three steps foreward two steps backwards.
We had our EO flock hit by predators last May. We were left with one hen and one cockerel. Our back up was our "B flock" that we had given to friends 40 minutes from us, but their flock got hit by predators a few days after ours leaving them with a single hen.
We had about 20 chicks in May and from them got one pullet that was worth working with and kept one cockerel. The cockerel probably wasn't wroth working with, but he isn't related to either the remaining hens so he is in with them now, and our prized pullet is in with the surviving cockbird who is her sire.
Our flock got MS the end of the summer, so now we are preparing to do a single hatch (we plan to set it in March) and then depopulated to purge the MS from the property and start over again. We will rebuild the Cream Legbar flock, but our Blue Breda are not going to be rebuilt (not enough space or time to make any progress with them). All the EO chicks are going to a lady in South Texas who started out with the breed last fall. We hope to mentor her as she takes over our EO's. We are still undecided on what the future of our Black Copper Marans is. They are the first breed we started working with and after 4 years they are finally starting to shape up. We may keep two breeds, but will be moving this spring and would like to cut our flocks size down. We have been keeping an average of 75 chickens and would like to get that number down to about 15, so keeping two breeds will be a challenge. We may just focus on the Cream Legbars so that we can actually make progress with one breed and let the BCM's go. Being spread out to a half dozen breeds (our Burmese hen recreation project, olive eggers, leghorn color projects, etc are also not going to be rebuilt) we spreed our resources too thin to make much progress with any one breed.
Good luck Glen. I hope that you get some really good cockerels this year. If we get a craving for EO spatchcock in the future we may have to hit you up for eggs in a year or two.