But do remember to put some lube on them though. I know from doing it they are really hard to clip in (X-series)if they aren't lubed regularly. In fact near impossible.

Its really up to you I personally really like the X's I have but wouldn't mind getting zeros if they weren't so expensive. The light action sounded like more of a recreational style so they didn't interest me. Although I have accidently unclipped a few times on my trainer, never on the road though.

Interesting that I have heard mentioned more then once that the extra float can be bad. They did feel a little strange when I first started using them becaue I could move my foot so much and stay on the pedel. I made the jump from those stupid toe clip, cages whatever. But within two rides I was fine.