Ran a naval battle with two British 74's against two Austrian 74's with rather strange results. First of all, I must say that I love the slower acceleration and turning! Definitely gives the ships much more of a "weighty" feel. I also concur that it didn't seem to hinder the AI, so far as I could tell.
So far as the battle, we exchanged long range shots then circled and closed. I tried to concentrate my fire on the Austrian flagship, and managed to sweep it with two close broadsides of grape - killing a lot of the crew. Then I had one of my ships grapple and board it. My attacking frigate had approximately 50% more men, so I felt comfortable letting them handle the situation while I concentrated on the other Austrian vessel.
I dueled around with the other vessel for a bit, rather enjoying the cat and mouse - before whittling their crew down to what I thought was a manageable level. Then I grappled and boarded them.
Checking back with my first two combatants, I was surprised to see that the Austrians had chopped my attacking English crew down to size, and now both crews were about even. I found this rather surprising, as I had a substantial advantage to begin with, but I was playing on hard, so maybe this was a factor?
The real surprise came when I went back and checked in on my other two combatants. Both had surrendered to each other! I have never seen this before. Not only that, but the Austrian ship had caught fire, and that fire quickly spread to my ship. Since my ship had already surrendered, I was powerless to move it away, or disable "fire at will" (which will free up sailors to extinguish the fires). So I had no alternative but to watch both ships burn until they each blew up in turn. Very pretty, but a tad disappointing.
Returning once again to my other battle in progress - I found that the combatants had apparently reached an impass. I had 61 sailors and the Austrians had 59, but after a couple of minutes of fighting, no more sailors were dying. I assume the crafty Austrians must have locked themselves in the captain's cabin, and my lads had no way to get at them. Feeling a bit foolish, there was nothing left for me to do but order my lads to board our own vessel and attempt to blow the cowards out of the water. Unfortunately, as soon as my ship pulled away, the battle ended - in a decisive defeat for me. I guess my lads surrendered.
It was only one battle, but my snap-judgment opinion is that the surrendering might need to be toned down a bit. Otherwise, great stuff. Thanks for all the hard work!