Oooh, page 8, so thats where Keith's new suggestion was!
I generally approve. If balanced right, it could be absolutely fantastic. I guess the "special" things like spire toys and golems are going to cost 50/50? I mean, we dont want a minor faction to severely skew the M:C demand ratio, right?
Or we could make some of special units M-heavy, and some C-heavy, though that'd be kinda arbitrary and as result the opposite of what we are trying to achieve.
Considering Mark-based scaling: please, leave the M:C ratio static for each ship regardless of mark. It is more intuitive, and doesnt create an unnecessary difference between early and late game. We want the ratio depend on fleet composition choices, right? Not on how far you are in the game.
And finally, i believe some resource conversion would still be nice. The reason is that unlike Starcraft, you dont really have a convenient sink for each resource. In SC, if you have lots of spare metal, you can spam marines and feel fine, but in AIW, once you hit the cap for your M-heavy units, you have no option but to excess.
Since there is no simple way to sink excess resource into spamming some unit, there should be an option to convert it into the other resource at some rate so insane that one would only do it if they are about to excess. 5:1, maybe even 10:1. Point is: there must be sinks. As an alternative, i could suggest making some mercenary units cost pure metal, and some cost pure crystal. Or, since they are mercs, actually have 2 tabs with same ships but different costs, so you can select which resource to use to hire them.