I extended the handles and set them on pedestals after which I placed 400 lbs on the board aaaaannnd nothing happened. I let it sit awhile and still nothing happened so I got on it my self and started jumping and still nothing. What I'm going to do is add a fail safe similar to what you were saying, lochabar. Just having long poles threaded through when I need them is arguably the smartest solution but I want the most bad ass so that simply wont do. The sleeve option was the original idea but I couldn't figure a practical locking mechanism with the materials and time that I had. Now I'm reconsidering it because I have a lot more time. Unfortunately it might be a while before I can post updates because there isn't any money in the aquarium account right now.