Pretty much, yeah.Aart, in your opinion, if an "OE" lays brown eggs, is it an EE? This is where I found debate.
I first tried to make OE's by crossing a Welsummer cock over blue laying EE hens.
Got some olives, some nice dark green(olive), and some browns.
Because those blue laying EE's didn't carry 2 blue shell genes.
When I used a BCM cock over Cream Legbar hens they were all olive...and sexlinked to boot.