Re: Slight overpower ok?
I don't see why there isn't an experimental category for boats as there is with aircraft.
Anything that can be construed as a form of negligence by a boater involved in an accident, whether or not they were at fault, can, and will be used as grounds for not paying. It could be something as simple as lack of sleep or drowsiness by a early morning fisher, or the slightest trace of alcohol in the blood system from the night before.
According to the (and I mention this cautiously, they seem to be by many, a hated bunch here) Coast Guard, alcohol is a factor in over 80% of all boating accidents, yet overpowering with outboards always seems to be the point where everyone gets upset.
My boat is registered as a new/home built (it is actually a rebuild) and the given maximum for horsepower is a good 30% over what I would ever put on it. Different country, different rules. But it shows it is possible to build a boat in the experimental category. It is just hard to find a insurance company to insure it. They don't take risk with experiments, even well engineered ones.
They are in the business of taking money in the forms of premiums, not paying settlements. Anything they can do, to avoid paying, they will do.
Years ago they decided that the “Pocket Rocket” motorcycle segment would be an easy target for higher premiums, the media loved it, branding all who road in this segment as reckless dangers to society. Then a accidentally released internal study from the insurance industry showed that this was the safest of all groups of motorcyclist.
The cruisers segment didn't like this, because it was their that premiums went up instead, but it was so.
People who like to live life in the slow lane, love to brand all those who like things a little faster as criminals. The insurance companies use this to their advantage, and it also makes great headlines in the media.
If you overpower, you make yourself a easy target for everyone.