Why is there a bottle neck on the map at cap finister? The ocean around north west Spain is vast and yet the map on the game makes it so the British can park some ships there and cut off any movement from north to south. Even if you go across the ocean to the Caribbean you still have to go through this bottle neck to approach the English Channel.
Bottle necks are fine as long as they make geographical sense like the channel or Gibraltar. But not in an area where you have the entire Atlantic to avoid combat.