I think the problem in the video is that the crew lost control of the spinsheet while getting got by a wave.
Getting your back foot out of the strap will be impossible if your front foot loses contact with the hull, no matter how tight or loose the straps are.
Just bad luck really.
Some kitesurfboards use so called "skyhooks", it's like a hook where you can put your toes under to lift the board out of the water, could work on cats as well.
![[Linked Image]](http://www.kiteboarding.com/prodimages/klingon1web.gif)
Nice picture and alternative Tony,
But from a biomechanics standpoint- I totally disagree with you.
If your fore foot looses contact with the hull, in MANY situations, including a brisk leg flexion at the knee, unless really wedged in there- the strapped foot WILL come out.
You shouldn't need the torque/force from your other foot to pull the strapped foot out.
