I have flipped mine many times, and have never got caught in the hiking straps. When it happens most the time you know "ya, I'm gonna get wet"
There have been times of great gusts where I did not expect it and still have not had any issues. I as well position my self so when I'm hiked out the strap is just below the ankles where the curve of the foot is. My suggestion is to practice capsizing on a controlled day and in a safe area free of other boats, etc. This way you know what to expect for when it does happen. The first time you'll be a bit nervous. Also it will help you to know how to right it as well. Have Fun! Be Safe!
You can kinda see my position in the video in this post here:
viewtopic.php?f=24&t=55744