You rang?
Me either, but I may have something worth trading in the spring. I think you are right on the genetics - that's why so many people are disappointed with EE or OE - you need to be sure one parent has two copies of the blue gene or the chances of getting blue/green eggs from offspring goes way down.
The Facebook OE chart uses O for blue and o+ for white. Good Ameraucana = O/O Leghorn, Marans or any non blue-green layer)= o+/o+
So sideWing will have a Marans o+/o+ and an EE o+/O and the offspring will get the 25% chance like Ravyn said! Brown coatings are a much more complicated issue, for sure.