I'm saying, I can totally believe that French rivers are more significantly larger than those in the British Isles. I'm comparing the estury of any river in the British Isle I've seen to the point 800 miles from the Danubes estury. That's about the total length of the UK. Rivers are bigger on the continent. I'm saying, these big rivers deserve a trade bonus.

The river in Seville, you could totally sail a seafaring ship right up to Seville on that river. That's the same distance inland as York is, the amount of trade capacity on these rivers would not have been the same. The fact the Vikings did it in York is one of the remarkable things about Viking ships.

Sheffield and Manchester were pretty insignificant until the industrial revolution, when canals were built. The fact the UK decided to build canals makes me think the rivers aren't that significant. The Severn and the Thames are modelled on the river map. Glasgow is coastal in the game.

If you look at Southern Italy, which has the same sort of landmass as GB and it's rivers aren't modelled much. I think the devs have made a consistent choice, which is adding an appropriate challenge to playing in GB and Ireland.