If I were in you shoes and had the hens,,,, I'd do my best to get that Pittsburgh Roo,,,, looks like blue partridge to the same makes more of them...
I think I would have to locate some splash,,, I have a dark roo that dispalys some partridge leakage,,, think he may be useful in this,,, and he HUGE,,,, locating LF splash might be diffucult. Definitely considering giving him all the off color hens,,, the white, silver laced, partridge and the blue,,,, sooner or later I should be able to make my own splash..... LOL
Cochin breeders usually try to keep their colors true,,, can't say I've seen splash available at any time or just didn't take note of them.
I have one splash hen. I also have 4 blue hens, and a blue rooster. I will have some blue and splash next year. I am very excited about these. I am loving the LF Cochins!