Lee, thanks for the answer! (Drops: Staying on flat pedals) I’m slowly getting the hang of this!!
In looking at all flat pedals out there, there seem to be quite a few concave pedals (e.g. Easton Flatboys) and pedals with totally straight bodies with no concavity (e.g. Twenty6, or Sunline) that get their concavity via arrangement of the pins. Any idea how important the concavity is in a flat pedal in order to stay in the pedals when things get rough/droppy?
Lo Pro Mag
Flat pedals don’t need concave bodies, but the best ones all seem to have them. Easton Flatboy, Truvativ Holzfeller, Specialized Lo Pro Mag and the classic Shimano DX all come to mind (and feel great underfoot).
A slight concavity seems to help you squash your shoe onto the pedal, and it gives you a more connected, cupped feel.
Concave pedals are more expensive to manufacture than “flat” ones. Don’t go cheap. Get a pair of quality, proven pedals, and rock it.
Lots of detail: Nice pedals: Specialized Lo Pro Mag