CWMI, I don't know where to find it right now, but I know I've read Dr Harley talk about his wife's dislike when he drives too fast for her. The simple solution is that he he just slows down to her comfort level. He would not do anything that makes her uncomfortable (not to mention frightened). I think this comes under the "avoid being the cause of your spouse's unhappiness" rule.

Your H should stop driving the boat too fast without argument. I know he knows this because he has coached for months - at great expense - with Steve Harley. When you point out your discomfort, he ought to stop driving too fast and that should be an end to it. I hope he does not take your marriage back towards where it was. He has enjoyed a much happier marriage for many months now, and he has the tools at his disposal to continue having a good marriage, despite differences between you.

Do you think you can talk to him about this?