For cyclists seeking maximum power transfer but also a minimal amount of float, Shimano’s SM-SH12 Blue cleats are the answer. By placing the pivot point at the front, lateral sliding movement is eliminated. But these cleats still permit a small amount of angle change from the pivot point back towards the heel so that your foot is not completely locked in place.  

Blue SPD-SL cleats have 2 degrees of float – 1 degree in each direction
Shimano’s newest cleat option – a middle-ground between yellow (SM-SH11) and blue (SM-SH12)
Allows for a small range of movement while still delivering a high amount of pedaling efficiency
Float’s Pivot point is at the front of the cleat, eliminating lateral sliding movement while allowing a small amount of angle change from the pivot point back towards the heel.