Hehe... don't worry about it. The files are as you said similar, the only thing that is different is W. As far as I see it, go with the one you think is the right. I can afterwards send you a PDF file with all variations so you can print it out or see it in better hight resolution. This won't even take 10 minutes of my life.
A stacked version I'm not sure, I think this will interfere to much with the eye. I have uploaded a version I also think can work in most cases. See #191
What do you think?