I guided a guy on a smallmouth float last spring. I explained to him what strainers are and told him to stay away from them. He didn't listen. He got sideways in front of a blow down tree and flipped his sit-inside. He was pinned inside the thing, completely submerged for at least 10 seconds before he was able to free himself from the pressure of the current. His legs were all skinned up and he was in shock, white as a ghost, and shaking. I used MY emergency dry bag to get him into some warm dry clothes. I sat him down on an island and went about retrieving most of his gear. It's not that you can't pin a sit-ontop but its much harder. I have a Pelican Fisherman, Jackson Coosa, Hobie Revo, Hobie Outback, and Hobie PA 12... All SOT's. I love how easy they are to rig and fish out of. The Hobies see most of the use now because I like having my hands free to fish and they're so easy to rig.