There's at least one obvious improvement for me in early game, the fuel use increase means that my stl scouts are no longer trying to slow-boat to another system.

<t> I thank for trying to keep me anonymous in this (seriously, how many people would do so?) and i'm very glad you're aware, and looking at your own explanation of it, I have to agree. Also your explanation also kind of exemplifies a problem with my own suggestion of varied fuel usages, while a ...

<t> Overall, it seems to be working very well, although there are some problems, for example as has been mentioned before concrete bunkering is weird with auto upgrading, as in giving ships concrete instead of armor, which I believe can't really be fixed, and the extremely slow fuel use kind of ...

I'd be willing to help test.
If you're going for hard sci-fi i'm certain i could figure most things out.