Yeah, Google Docs runs kind of crappy, and the formatting doesn't import 100% correctly, but the reason we made it for GDocs in the first place was because (1) you could use it from almost any computer with a web browser and because (2) it made it really easy for drop commanders to share configurations in real-time. Anyway, I posted the .XLSX versions in the OP now. Might be better to use those if you just want a local spreadsheet, since I'm sure GDocs loses some stuff in translation.
On version numbers, I just left it BETA for now because I was updating it and tweaking it so frequently, once I get a little more testing and make sure this version is okay, I'll advance it to 0.5.4c.
I thought about adding the mini calculators back, but those are kind of unnecessary since you can just zoom in/out of the default ones are too big. And having just two, like you said, is a lot cleaner and easier to work with. I kind of got carried away with it before, heh. Decoupling the reference sheets (now that they're not needed for the calculators) is also nice, since that gives me more tabs to work with so I was able to split them into weight classes without worrying about the number of tabs.