I have thought about that too. If I breed a lavender AM to a French BCM that lays the dark eggs, I figure they would be OE but what color would the chicks be or once grown I should say? Since you breed black AM to Lavender AM to get better lavender and splits, would any of the chicks from the Lavender AM and FBCM produce any FBCM with lavender where black would be?
I just hatched a bunch of OEs! Lav AM over Black Marans. All my chicks are black with some yellow highlights around their faces. They have a few leg feathers and big puffy cheeks!