My wife's been using Shimano SPD pedals since she started riding back in 2003. I started her off on this pedal, along with a mountain bike shoe, because I thought it would be easier for her to walk around off the bike, which it was. Since then, she's gotten more comfortable riding, so we've upgraded her to a proper road shoe, but she's still using the SPD pedals.

The SPDs aren't horrible, but they don't have a lot of float, and since she had knee surgery last year, I'd like to get her on a set of pedals that are potentially easier on the knees. I set her up on a set of spare Speedplays I have, and once I got her cleat position down, she spun nice, smooth circles. The only problem is that she has a heck of a time clipping in. I guess she doesn't weigh enough!

So, I thought about picking up some light-action cleats for the Zeros, but now I've noticed that they actually have light action pedals. They look more like the X series than a Zero. Does anyone have any experience with these pedals? Is the cleat more like an X (non-adjustable) or more like the Zero with the set screws? I'm trying to decide which would be the better route to go for her.