IF: Good point about the movement. I had forgotten (never actually built any, meself, in all the games that I have played!

)
Timstone: I know that the mod isn't finished yet, and that's why "delete" for the time being should consist just of adding a racial area to the tech, such as 2 (deeply religious). You have to do this for the nonce anyway, since the AI still calls for those techs and if you simply erase them you will get an error message.
I
did find out why you cannot have aggressive mining at tech level 1, though: if you do, all the mining stations on the homeworld are aggressive in the setup!

That might be kinda cool for a "we have to get off the homeworld before we choke on our own excesses" scenario, but that's not B5's canon.
So, while I still think the tradeoff should be there, it cannot start at Mining Tech 1. Perhaps the AMC I should be deleted and the tradeoffs just be between MC II and AMC II and MC III and AMC III.
And, TS, I didn't do this all in a day. I actually started the tech-tracing before my computer went down in the early spring, and I finally got the couple hours needed to finish it.