Thank you for that reply Big Medicine. I couldn't agree more with you regarding the importance of type, and even temperament. I've always preferred traditional color patterns (of all breeds) because subsequent color patterns differ so much with regard to egg laying ability, growth, hardiness, size, etc.. I think you've been very faithful to the ideal Brahma, including keeping it a functional fowl (my hatching eggs were jumbos).
I think I'll find some additional SL to grow my flock and not mess with these too much. Someday, due to scarcity of stock, I may be forced to mix it up a bit, but I'm not there yet. My Light cock has good type and temperament (came from Darlene Hobbs) but is undersized.