Quote Originally Posted by Kathi
As far as walking in the road ones I don't find them that uncomfortable especially with the covers on. I once walked 3 miles down a mtn pass, I was afraid to ride, with my cycling shoes on and wasn't in much discomfort.
I *heart* my Speedplays. Years of ballet have really taken their toll on my knees, to the point of where I threw in the towel on dancing and took up cycling instead. I find that I have the strength everywhere else to stabilize myself on the pedals, so I use the X5's. After some experimenting with pedals, I found that I just wasn't built at right angles, and most of the pedal systems I tried I couldn't adjust enough to make them comfortable for me.

I don't find the road cleats to be all that uncomfortable to walk in, particularly with the cleat covers on. To velogirl's point on float, the more expensive Speedplay road models have adjustable float, so if too much becomes an issue, you can customize them. I'm not too familiar with the Frogs, so I don't know that they have this feature, but it might be an option if the degree of float irritates your injury.