Yep, Trisk is right. I had the toughest time clipping in my second foot with the Zeros. I could clip in just fine on X-2s (had always ridden X-2s for years) and thought that Zeros would be fun to try as a step up, so I spent big bucks on the titanium model, loved them once I was in them, but clipping in became enough of a problem that I had to turn around and sell them on Ebay. I'm 5'2" (ish) and under 105 lbs. I haven't tried the light action (went back to X-2s), but even if something is free, it's worthless if it doesn't work for you!

Emily