i have experimented with this and there is a trend for decreased retention over time when you leave your bindings loaded. more so in the toe piece then heal peice due to the fact that most people don't store there skis with the heal peice engaged. it is a very small margin over the summer. but why not take the 2 minutes at the end of the season and crank them down. if you like your old equipes and fks's it wouldn't hurt to pro long the life. i'm almost tired of offering binding advice on this website, you should really have your bindings checked at the begining of your season atleast. so cranking them down will only serve as a reminder that you should go to your local ski tech at the begining of the season and give them the once over. spiral fractures are no fun and end your season pretty quick. pre releases can be just as bad if not worse. g