Sweet. I haven't had enough eggs in the winter though. I may start weighing more often. Usually when butchering a group out I've already picked the keepers only by size and shape. I think my problem with eggs was my starting Orpington's being bred for show not eggs. I'm too far into project to let loose and start something new as I think or hope they are getting better. The reason I got the Orpington's was for winter eggs. Not so much. I've also hatched some Altsteirer for NYHal and was hoping they would do well.
As for the naked necks my feed store will be getting NN from MM at Easter. They also have Dark Cornish there as well. Is there any need/advantage to crossing them.
They will be the same age as my project birds. I was thinking of raising them together however they will have been been given shot for Mareks and mine will not. Problems with mixing the two hatches?
I've actually timed my hatches so that when my mature flock slows down for the winter, my pullets are coming into lay. It worked really well this year as I still had enough large eggs to sell to people, and my family and I had plenty of pullet eggs (which I actually prefer) to satisfy our own needs.
I hope to cross my NNs with some Dark Cornish to (hopefully) improve the amount of breast meat as well as increase bone density to support any additional weight. I'm maintaining a line of pure NNs, and then experimenting on making a "meat" line of NNs by interbreeding with other birds to enhance growth rate and size.
As far as mixing the two groups is concerned, I'll leave it to someone else to comment. I personally intermix all of my birds, assuming that natural selection will weed out the weak in favor of the strong.