Imho adding any modifiers of this kind would only mask the problem(s),not fix it.Two things need to be changed/revamped:
a) End nodes. Even if we ignore how absurd it is for someone with 100% trade deficit to be making (this much) money,the fact that they are concentrated in one tiny part of the map is infuriating.Just remove the damn things.They give you the feeling that global production/trade system is solely set up for a lazy Englishman that doesn't even bother to send a postcard out of London.
b) Turn the system into a perfect circle by making some nodes go both ways ( you know what i mean
).A prime example for this would be the routes between Europe and the colonies.At some places,where you want to represent heavier activity just create small loops that have only one or two exit points.You could also make it so that the number of connections is tied to trade efficiency.This way,the busy European trade nodes will be buffed,and rightfully so, without destroying the trade everywhere else.
a) End nodes. Even if we ignore how absurd it is for someone with 100% trade deficit to be making (this much) money,the fact that they are concentrated in one tiny part of the map is infuriating.Just remove the damn things.They give you the feeling that global production/trade system is solely set up for a lazy Englishman that doesn't even bother to send a postcard out of London.
b) Turn the system into a perfect circle by making some nodes go both ways ( you know what i mean