Simple Green ALPS!
I just came from that board that was a Ducky 1087XM!
Hooked up a Blue today, was a similar feeling but with a higher force to push the switch.
The Green ALPs are alot noisier then the MX Blues though. But they feel similar, with just a smidge of a lighter force required. Its not as light as Reds either.
Course there is also the MX Browns, but you can hardly notice the click at all. And they are as light as Reds.