Pedals for track

I wanted to see how peoples had faired for track use and any opinions, suggestions and anecdotal stories.

There's a thread for that:
https://www.lfgss.com/thread17288.html

But obviously Hippy is at least half right. If you already use SPD-SL on the road or have no prior affiliation, SPD-SL is the right clipless pedal for track use. If you already use Look Keo on the road and want to use the same shoes, Keo is fine for track use too.