I find most learn by trial and error, along with trying to predict outcomes. This particular project threw us a few challenges, but overall it was mostly time, money and a ton of hatching and space to grow out birds. Our goal in offering early generations to others was to get other lines developed in case something would happen to ours and the work would not be lost. We also thought it would be best if other genes were brought into the project to keep the variety strong. Hopefully someone will share work they have added to the project, as we just don't hear from very many folks that they're actually working with them to improve them. I know a select few are and I've also since then isolated a later generation flock not too far from me to ensure our work is retained. But it would be wonderful to see progress being made elsewhere too.
We're also working on developing lavender araucana, mille fleur (jubilee) and mottled orpingtons. The mille fleur pattern is a bit more complex combination of genes. We are enjoying learning more and more as we go along.