The pedal also lowers your position by at least 2.5cm for me coming off shimano's and more for looks.
I always wonder how many users of those pedals are actually aware of the effect that dreaded stack height has on their performance...
Except for the Look Keos, all Look pedals I know shorten the effective crank length by at least 1 cm depending on the shoes you're putting on.
Funnily the new Time pedals compromise in this area as well even though it was Time that actually applied the theory of stackless (well, more or less that is) correctly in their time (sic) proven Equipe range of pedals, in order the adopt the popular Look 3-point cleat fixing system they lost that edge.
The old TBT system with the split cleat was IMHO at least far superior in that it did present the sole of the shoe nearly straight to the pedal's axle over a comfortably wide area avoiding hot spots in the process.
But that's another issue....
Conversely, the Look Keo range manages roughly the same result as Time by redesigning the cleat and pedal, lowering the clip system so that it engages closer to the center of the axle unlike the classic Look 206 pedals and derivatives.
Those two companies have been looking at each other's work and not just pedals either....
I have no idea whatsoever how many pros actually prefer using clipless pedals without lateral float but I'm most certainly not one of them.
Then again I'm no pro either but I do value my knee joints.
So far the Speedplay and perhaps the new ORB come closest to the theoretical ideal to my mind. I've never used either so I'm just judging from a mere engineering POV.
Enter the new pedal from Mr. Lubanski but without lateral float I know it will never be my cupper, no matter how well designed elsewhere...