Call me a spaz, but I tend to check and double check everything, especially when my body is no longer tethered to me and even more around water or sand. I also use a SunwayFoto lever/screw clamp. It doesn't have any mentioned stops, but it clamps down hard on my L-plate. I also have a BR RS-7 that I don't take off until I'm positive that I'm clamped down tight. I also have a safety tether on my RS-7. I love the fact that my L-plate slides in/out as easy as it does, it makes inverting quick and painless and is one of the reasons I switched to an L-plate and AS in the first place, any stops would annoy me. I also made a hand-strap out of paracord which includes one of those quick-snap buckles. If it came down to it I could connect that buckle to another one on my tripod and this would complete my spaz system. Worse case double check and then check again or as we say in woodworking measure twice and cut once.