I guess I was just looking for a reasonable way to reduce the strength of the British side slightly for this particular scenario since it's two ships against one. So the intent is not necessarily to introduce a house rule for the game as a whole - though I could imagine doing so for some of the smaller ships in the game. In the other historical scenario I posted, the North Channel Naval Duel, I added a similar house rule to reflect the situation in the original battle, but for both A and B range.

Looking at the thread https://sailsofglory.org/showthread....ngth-of-a-Turn, I've understood that the scales for movement, time and range in the game don't quite match up.