Wow! you're doing something right, one of mine started laying just last week and she has at least a month, maybe 6 weeks on your CCL. I wish I could get you a CCL roo so you could start hatching her eggs.
Not sure what I'd be doing different lol. I get organic feed and ferment it for them from day one but mine haven't gotten to really free range much at all this year since the garden's been in. We haven't managed to finish the fence around it yet and the girls won't stay out of it lol. A CCL roo would be awesome I'll just gave to be patient in that one though lol