My pedalling action is quite straight so would would keo be better for this?
Keo has a choice of float determined by the cleat, black for zero, grey for 4.5° and red for 9°. I use the red ones for road and longer TTs, and the black ones for 10s and the track, with the release tension turned right up on my track bike. The float on Keos has a bit of friction to it, unlike the completely free float of some other systems, so they never really feel like you're skating around on the pedal even with the red cleats.
Keo has a choice of float determined by the cleat, black for zero, grey for 4.5° and red for 9°. I use the red ones for road and longer TTs, and the black ones for 10s and the track, with the release tension turned right up on my track bike. The float on Keos has a bit of friction to it, unlike the completely free float of some other systems, so they never really feel like you're skating around on the pedal even with the red cleats.