In reply to Ffion Blethyn:
> It's the 'Renegade pro' that has normal/old fashioned/traditional doubled back buckles, and the 'Renegade' that has the speed lock/zip lock ™®© buckles.
As far as I can see from the DMM web site, they no longer list the Renegade Pro. The Renegade has been replaced by the Renegade 2, and there's no 'pro' version currently shown. Any Renegade Pros that might still be on sale will therefore be old/run-out stock. The main impact of that is that folks who really, really want a DMM harness and also really, really want a doubled-back buckle need to move fairly fast.
Personally, I've never had any problems with the "slide lock" buckle on my DMM Maverick. (Poor choice of name by DMM, though, in the context of this discussion!) Unfortunately they've discontinued that model, in fact they don't seem to do a harness with fixed leg loops at all these days