Is there anything aside from a mast bob that will stop a turtle if the wind is blowing hard against the underside of the tramp when you go over? The last time I was out, 20 knot winds with larger gusts, I got blown over even though my main was sheeted out as far as it would go. The mast went under and I was turtled faster than I could imagine--seemed like less than 10 seconds. I'm not convinced that my mast is sealed given how fast it went under, but even if it was, with that hard of wind, would it stay up anyway? I was out solo of course and had to wait a while in the rain for a boat to help me out. Definately don't want a repeat of that. I'm not crazy about the mast bob either, but will get one if need be.