Another question for you boat guys. Maybe someday I will be one too after I learn more.... How do I remove the plain cheapy plastic seats from my boat?? They both are all plastic, single, back folds forward and they seem to be on some type of lazy susan set up where they can spin 360 deg. If I peak in between the bottem of the seat and the lazy susan thingy I can see some big screws but no way to get to them. It almost looks like the seats should slide off the base somehow but I see no type release. HELP!