Well an update, I decided to go ahead and just order a second 10" screen from China. Funny thing though, when I put the 10" screen back on the 2014 model (the donor) the startup image popped up even before I had a chance to recode it, even though it was still coded for the smaller screen (which it never recognized). The only difference was that the split screen feature was missing. After recoding back to the large screen and resolution in bimmercode the split screen feature came back. Go figure.