Does anyone have a recommendation for a solid, cost-effective, low-profile quick release system? I have been using Manfrotto's 501PL quick release system for years now but they don't stick to my camera very well (and they twist), and they stick way out in front of and behind the camera body -- even moreso than when I was shooting with larger Canons.
Because I still have two Manfrotto heads, I am ideally looking for something that can be secured to the 501PL plates or directly to the heads.