Doug, I had been meaning to crack a joke about those shins when you showed this photo before, but never came up with a good enough one...now I know why you had those scrapes.
I agree with you, my wifes bike has those one sided pedals and I have hit my shins with the edges while moving her bike around. I have used regular round edged shimanos for about 20 years, and while I can see the advantage of the one sided ones for being able to use any shoe easier, I do like the no-fuss clip in on either side as I commute so much, and then of course how they are more streamlined for moving the bike around, or even when putting a bike into the back of a car (I often put a bike into the rear seat area of my car, take off front wheel only and bike fit into fairly easily into that space even with the pedals on-helped by the smooth edges of the 520s and my still alive 20 yr old shimano spds.)

ps, those are nasty scrapes, the type that elicit long shoreman language I reckon, shin scrapes are the worst.

I use keen sandals and Crank Bros. candies.

Comfortable on and off the bike and only click a little when walking.

With wool socks I can go from mid 50's to 100+ degrees.

And they leave "tiger stripes" on my feet from the sun!