Never had a pair of Speedplay, but I bought a pair of CB eggbeater 3's - and hated them. I like a little platform under my feet, just in case clipping in doesn't go so well at times for a moment. I replaced them with a set of CB Mallet 3's and was much happier. This is on my Cannondale Trigger. So I ride the same kind of terrain you do. Just my humble opinion. Best of luck in the decision.

Hey, one other thought - I'm way more like Tim Taylor than Bob Villa, and even I can swap out pedals in under 5 minutes total, counting the time to dig up my torque wrench set. So you could certainly ride with both a good amount of miles and see what works better for you. If I can do it, anyone can.