I decided to peruse Athearn's website and look at BW Cab's to get some clues as to what Athearn did with the HO Models. One thing I did notice that while the battery or tool box position never changed, the window arrangements did. I believe SP would sell enough on it's own to make it successful, but the platform will be used to do many other scheme's. Some of us won;t like it as their particular schem will be a "foobie" to them, but I gurantee that sales will be pretty darn strong.