Pedal choice for new Felt S32???

I love my speedplays.  They were a little hard to get used to right at first (I felt like I didn't have good contact, couldn't keep my foot in the pedal) as I've read somewhere else, at first they feel like you're pedaling "on ice."  I had Look pedals before.

But, once I got used to them, they're the best.  I had some weird knee pains before, no problems now, the float really helped with that.  I also found that I have better foot position and better pedaling mechanics with the speedplays because you have to pedal "straight" (if that makes sense) otherwise, your foot won't stay in.  This was a really good thing for me.