Well, all I can say is that these are more like a hybrid than a typical classic leafswitch.
It looks like a laptop key mechanism... which heck, I like laptop keys for typing.. but, its nothing like an old leafswitch.
With a true leafswitch, you get high fire rates from being able to bounce on the activation point with very little effort, and no momentum stoppage.
Its easiest to represent this in a somewhat dirty way...
When having intimate relations with a woman:
a) Bouncy Spring loaded Bed
As you thrust and connect, the energy is transfered to her and she is forced into compressing the springs. The springs then do all the work of returning her back to the original position. Once her mass is in motion, its easy to keep a rapid pace of thrusts, timed to the spring return.
b) A two inch foam pad
With the foam pad, it has limited absorbency and depth. When thrusting, it pushes her past the maximum depth, slamming her backside into the floor. The time it takes from her slamming to a complete stop.. and her slower return... means that its harder to maintain a speedy repeatable pace.
A traditional leaf may take more activation force due to compressing the spring. However, once the energy of the springs is at a set level... its easy to use the spring to set up a nice vibrational bounce pattern, with a hair trigger of depth.
Andys leaf button, is more or less a modern equivalent alternative to a microswitch. The difference being that its less noisy, and takes less activation force.
Micros usually have a certain activation force, to keep players from accidentally hitting a button... as too sensitive a button could be a real nightmare with accidental activations. It also helps in charging up the return spring for a faster reset. However, the cost of this is player fatigue in rapidfire situations, as well as increased noise levels.
Andys may have an advantage to the micros... but if anyone did a side by side 60 second speed test of a real leaf -vs- andys modified leaf, the differences would be "landslide" apparent.