Oooo buff x polish beauties! And Lavendar to bootYou wanted to see a cross between Larry and Mr P, correct? But Larry is older...a young barred rock would be a good idea, then. And her offspring (by EITHER male) would be sex linked. The males would be barred and the females would not be. Same with any pure silkies. The all black skin will pass to males while females won't get it (or will be incompletely marked).
Now that I think about it, crossing buff brahmas with Mr P could have interesting results. You'd have a good chance of blue, featherfooted Brahma sized beauties, with gold leakage....males could have the leakage extending into the hackle/saddle feathers, too....and be stunningly gorgeous birds...I think... middle of the night ideas...gotta run that through the genetics calculator as now I'm truly curious about it.
Edit: going to have to play with it on the computer. Things I've been able to do with it in the past I can't at the moment. Will need coffee first, too.

What about a light Brahma? They are a Colombian pattern are they not?