I'm one of the folks who had a h*ll of a time clipping into Speedplay Zeros. I sprung for the titanium ones (had a big coupon from Performance) and loved them once I got into them (since I didn't need or want the FULL float of the X-series pedals), but clipping in with my second foot was very, very tough, despite using them on the trainer for quite some time trying to loosen them up and having DH adjust them numerous times. He had the screws as loose as they could be and not be dangerous to use. I can't tell you how many times I had to ride 1-2 miles without being clipped in on the right. VERY annoying on group rides when I couldn't take the time to coast over and over trying to clip in!

I did some research and found out that Speedplay itself acknowledged that smaller folks (me, 5'2", 105 lbs) could have difficulties clipping in (thus the "Light Action" models were created). And a couple of LBS owners responded to my queries on another bike forum and stated that they didn't recommend Zeros for their smaller female customers as they required more torque to clip in than some gals could generate consistently. I don't know your size, but it's something to keep in mind.

My DH (155 lbs, 5'10") LOVED his Zeros and had no problems clipping in. I have no problems clipping in with Speedplay X-2s and have ridden them for years.

I ended up selling my Zeros on Ebay -- got almost what I paid for them, fortunately.

Just my two cents....

Emily