"How about eliminating green markers on the front of diesels. I'd take white maybe, red rarely. And allow us to turn them off. Not a bad option for steam as well."
Gosh, yes. class lights are almost always off. Too many locos look like Xmas trees.
"Fixed pilots on higher end models"
At these prices, an easily, reversible frame-mounted pilot (separate piece or a spacer, etc, for use with the "standard" one) should be a no-brainer. Wait - Atlas does that...! And I put mine on my NYC F2. So - no excuses. (Same thing with the tiny-wheeled steam loco 4-wheel pilot trucks - big curves usually don't require this compromise as often or to the same degree; I have 072 curves, as many of us do. For $2K, could I have a second truck, or optional wheel sets with an easy swap design? Really?)