I get what you mean and yeah this is quite the problem. 1.0 is the fastest version and I enjoy running 1.0 more than 1.9 and I can understand if you do the opposite. As 1.0 and 1.9 are differ in many ways (not only through glitches, but also through unit balancing ) we can't really compare them, so I guess the best we could do is adding version as a new variable.

I'll add version as a variable. I've been keeping track of versions when I could on a separate spreadsheet so I can update most of them.