The cost of research added by other mods drops drastically—from 270 points down to about 9, I think.
It doesn't exactly ruin the gameplay, but it would be better if it could be fixed easily.
This applies only to the initial research in the first three slots... There are several mods that really ought to be much further down the research queue. It’s just that some people couldn't be bothered and simply added them right at the beginning.