and then the fix can cause more problems than we had before. I havent played much to see this but is it really a problem? If I understand things correctly, Baltic is an inland sea in the fix?
Yes it is an inland sea, I placed Kopenhagen (whatever the Viking city is that Holy Rome can easily capture) in a strategic point so that you need to own it or have friendly relations with it's owner to pass through it, keeping with the historical nature of that area.
The main problem is that the Holy Romans spawn with 4 catapults, 3 crossbowmen, 3 swordsmen, and 3 lancers, yet the Vikings start with their cities only having walls and 2-3 units defending, usually crossbowmen and Huscarls. This makes it too easy to rampage through the Viking land.
I've been thinking over how to fix this and I believe I've come up with some ideas, I'll just have to test it.
1) The Vikings start off with 1-3 more defense-centric units and some of their crossbowmen will instead be heavy spearmen, that way they can better hold off the lancers. I'd rather not do this as I'd either be buffing human Vikings or giving the AI Vikings a bigger bonus than the human one. I'm already giving them an extra settler, crossbowmen, and worker, though only to make up for the fact they'll never put out nearly as good of a defense as humans will against the Holy Romans.
2) The Holy Romans do not spawn with Lancers, they already have 3 swordsmen and 4 catapults. I haven't played too many non-3000 BC or European civs, but I don't believe I've seen a nation with so strong a starting force. They already have more than enough production resources to get going within 20 turns and churn out a huge army, so I don't believe it'll really impact them.