Interesting food for thought. I use a sling strap (the Carryspeed strap) that attaches to my tripod socket. If I am carrying my camera with my 80-200mm or 150-600mm lens mounted, I transfer the strap mounting bracket to the tripod socket on the lens, believing this is a stronger mount point. Should this mount be damaged, replacing the tripod mount ring on the lens would be cheaper than fixing the camera tripod mount. I too have never heard of the camera tripod socket failing with one of these straps, but why take the risk. Also, one of the features that really appealed to me about this strap (which is, unfortunately, no longer available in the U.S.) is a leash that connects the mounting bracket to one of the camera strap mounting points so if the mount or camera tripod socket fails, the camera and lens will not fall to the ground.