| In what way does it penalise them? You can't go without either military or research, you have to do them both. If you build all factories or all labs you'll loose fast |
I don't. I've usually switched to all labs and 100% research spending inside 18 months on a gigantic map. The computer loses at anything below the top 2 levels because it is so far behind in the tech race - the slightly reduced production capacity over the balanced approach (and it is very slight, if anything at all) is a non-issue because you need so little of your much more advanced military material to completely dominate. And you don't need NLCs to do so (in fact, I never play neutral any more). All factories is slightly trickier to pull off if you have tech trading off, but still works - you overwhelm the AI through sheer weight of numbers in the early invasion stage then keep reasonably in touch techwise by stealing through invasion. It's actually more effective than all labs (unless possibly you go for NLCs) on the top 2 levels. Both are more effective than a balanced approach.
Would you rather have 50 production and 50 research (equal mix of factories and labs, 50/50 spending split) or 50 production and 150 research (all labs, focus on research) from the same tiles? Sure, it costs more, but since each building is working at its full capacity, it is producing twice as much as an average building in a balanced approach. This means more space for stockmarkets to support additional total spending! In practical terms, you can usually support near the levels of production you'd get on average from a balanced approach *and* have a load of extra research as a bonus (or vice versa). You lose some flexibility since you have no way to ramp up production on demand, but that's nothing a little forward planning doesn't fix.
If you decouple the sliders, the advantage I've outlined above completely disappears because then *everybody* is getting 100% use out of their buildings at all times. I can't see any reason why funding of research and production should be an either/or decision as it is at the moment. If you have the money, why shouldn't you be able to fund both to their full capacity?