I'm sorry if I missed it, but how do you get the pencilling genetics? Is there a specific strain or variety which has it or does it show up when you start crossing varieties?
Usually you need to start with a pecilled or semi penciled type but sometimes you get lucky and some of your birds are hiding a pencil gene. That's what happened with me. I still don't know for sure who is hiding all the cool genes that popped up in my flock. I think mottled black's can hide the gene and royal palms can be pencilled.