I think that way seems a nicer to way play, making everything yourself.
But this round I'm specialised. I've gone -30% income (want to save on upkeep costs too). Although I don't have much time, I also want to be able to attack. So Zidi says 2 sciences - but in reality I've gone for 3 too. Cons, Res and putting military up now.
The biggest problem I'm having is turning over my large amounts of iron. E.g. if I dump my iron at 9, i'll be making 990k gc from iron production/tick. When market hits 15, i'm making 1.65m/tick. Then obviously I'm hoping to be making more when wars come around and what not. Problem is, like I said, the quantity isn't in demand that much.
Hmm, just had a thought - perhaps I'll dabble in food now. Less variance there, and I can use that to offset. Already got the res sci, so that'll help.