Thanks for the reply oldjeep. I called the manufacturer and they said the seats were made for base boats, so there made to be mounted with a piano hinge. I really like the seats, I'm not married to them though. I just like the colors and the 24" seat bottom. I think I'll just mount a 1/4" plate of aluminum on the bottom..
I would like to see pictures of them installed. I have a 1997 1850 capri and am exploring changing out the big clunky bucket seats for more room and manuverability. The ones you have look like what I was thinking of. How comfortable are they so far?