I have and use both a BlackRapid RS-5 and a SunSniper (depending on which bag I grab). I love both straps. And I loathe the stock strap to camera connector; I have no confidence that they wouldn't unscrew on me while I walk and the camera spins.
Happily there is a fix. I use a major brand Arca-Swiss compatible L-plate on all my bodies (Kirk, RRS, I don't think it matters). So instead of screwing the strap lug into the tripod socket on the camera or the L-plate, I bought a Wimberly C-12 clamp (http://www.tripodhead.com/products/C12-compatibility.cfm
) for each strap I use.
The Wimberly clamp has three set screws surrounding it's threaded socket. I removed the rubber gasket from the strap connector, screwed it into the Wimberly clamp as tight as I could, then set all thee set screws. End result is that the Wimberly clamp cannot come free from the strap no matter how hard I try to twist it off. Then I clamp the camera to the strap with the clamp knob facing forward so it's not hitting my leg/hip when I walk (the lens hits first).
With this arrangement I have confidence that the camera won't unthread from the strap, I can move the strap between camera bodies, and it's freaking easy to get the strap off when I need to use a tripod.