Ill do a video this weekend when I bring my keyboard home from work. Can't really remember what was different as far as the sound between the boards. I do know that the addition of PBT caps made a huge difference in the sound, and it's PBT so of course the difference is for the better =P. The lab I work in is super loud so I will have to get a better impression of it with the greens at home. I haven't had any issues with fatigue from typing on the greens, You just tend to not bottom out on them if you are used to blues, so you aren't using the whole force of the spring.