I have no idea why. But now I cruise around, say 25 or 30 mph, where in the 1800 I was always going 40+ Maybe it's the size of the boat, maybe age has finally caught up. But now we head out and I just don't feel the need to run at 3/4 to wot most of the time.
Of course over the forth with just the guys, I did burn a half tank of fuel in about an hour.