I stuffed my 31 Sonic on Lake Ontario. Playing in 5-6' waves spaced fairly close, I got a little heavy on the throttle, having a blast when I realized I was looking at a vertical wall of water about 10-12' all by itself. Smashed straight into it, luckily I swallowed most of the water so no worries about sinking! Ontario frequently has rogue waves, often in groups of 3 known as the 3 sisters. They sneak up on you when you have a rythem going and the trim and tabs perfect. Helps you remember who is really in control-the lake!