"Insurance" can work both ways! But I've only encountered it working in favour of the pilot once:
The school I hired from in Arizona have a fleet of 2-seater PA28s, as well as (I think) two 4-seaters. I asked about this - I'd never come across a 2-seater PA28 before. The answer was that they were standard 4-seater aircraft, with the rear seats ripped out. The insurance company apparently charged less to insure an aircraft with only 2 seats, and the school were able to pass the lower insurance rates on to their customers!
FFF
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