I need some kind of life jackets for a 10 ft runabout for use on small lakes and small rivers. I don't intend to get wet, but better safe than sorry right?<br />I want something thats not too bulky, but at the same time will give good buoyancy when its really needed. <br />Anyone had any experience with the automatic type ones? I will be ordering via mail-order so I can't see them up close before I buy.