Our capital is ok, with Bureacracy an Academy will be 30

/ turn. Bulb is 1500

, 1500 / 30 is 50, so after 50 turns of 100% research, the Academy will outrun the bulb...
I'm btw. not even convinced that Mining is anything we want. What we want is max-research, because the sooner we reach Paratroopers, the earlier we'll win. We can whip all cities down to size 1 once we got that, researching Mining will only delay the time at which we get Paratroopers and the extra-Hammers we have to invest into the Execs will take time to pay off. Argument of Mining increasing research is wrong because 1

comes at the cost of 1

, so as long as we aren't able to sustain 100% research Mining will give nothing, and I doubt very much that we can sustain that, because I even can't sustain 100% in my current game where I have Rathäuser (BurgerKing UB) , Banks, Markets and Grocers in all cities and that game has Mining.
This is no Sushi-game where Mining gives 30

and where the cities have to be large in the end
Wastin, it's a game with only little Mining-resources so Mining will give only little Hammers, and it's a game on normal speed where Mining-Inc-Execs-cold-whips would be 5-pop, that could be 5-pop (or 3 if we'd do standard-whips) that could produce research, so instead of beelining (like you said) we'd lose research at 2 ends that would have to pay back.
Production of Mining Inc. doesn't matter because of the possibility to whip everything down in the end.
And I'd love to play out 2 test-games, but I'm currently still absolutely devastated and playing is a horrible experience for me.
I still think that what I said was / is right and that you're both having the wrong picture.
And what I'd like would be to research Music, start a GA, get 2 GSs instead of 1 and use one for bulbing Edu and 1 for an Academy. It's really not as if the extra-Hammers from Forges were good enough to make up for an extra GP, Hammers are really not a big deal in this game, research is though, and the later advantage sometimes is the better one (if it's great enough, and 1500 more points from the Great Spy are a lot) .