All parts of the BR system are more than strong enough for your gear. The only possible trouble (I have read about) is the danger of the fasten-r-thingy that attaches to the camera or lens plate working it's way off by unscrewing. The connector has a gasket on it that compresses when tightened, so I really don't see it happening, but I have read horror stories. I never had it happen, and I have since attached it to an arca-compatible clamp with some LockTite. That should never come loose, and it is very convenient when switching around between sling/tripod/monopod. Just make sure you get authentic BR stuff, as there are a lot of knockoffs out there. I believe inferior aftermarket turnbuckles are responsible for most catastrophic failures...