Redwood, I can't speak for Smoke but I would really like if you could go ahead and send me the slings so that we could evaluate what is going on with them. I have thousands of them out there in the world and if there is something we can or need to do to modify how they are being made I want to do it. Also if you can qualify some details for us like height and weight that may help to, but I have guys that are over 400 pounds (let alone that I hang on mine nearly every day, sometimes alone and some with my wife and or kids(also close to 400 pounds of load)) on my slings for over a year now and so I am really curious to see what might be happening to give you trouble.