Whenever I go out on a shoot with my Nikon 300 mm f2.8 lens, I worry about it falling from the Wimberly Sidekick. I was just recently on a trip, and one of my friends noticed that my lens plate was not properly inserted into the Arca Swiss mounting. I could have lost the 300 mm and the D100. In fact, I had carried my rig on my shoulder for about 100 feet before my error was noticed. My answer for that possibility is the safety lanyard that I rigged in the pictures below. I used an old badge lanyard from work and a clamp to attach my lens to the ring on my Manfrotto tripod. The soft strap does not interfere with any motion of the Sidekick, and it does ensure that the lens will never fall to the pavement. I hope that others can use my idea. The lanyard is easily removed, and can be stored in your pocket.