The best action is real mechanics. Optical scan. Awesome!

Thanks, this is indeed a project I've been working on for the last two years (although in reality for most of that time I did nothing and I also own a Yamaha N1X). There are two threads about this project on PianoWorld forums and they follow my quest into it.

People probably know that I am a huge Pianoteq detractor Whatever our differences are, I think my controller is a very good proof of concept that one can eassily make a fine MIDI controller with a real piano action for much less money than current hybrid pianos. The piano action aside (which is from a 100-year old grand piano and I had to restore it and fully regulate it myself), the electronics costed me around $200. Well, I spent a lot of sleepless nights to experiment, design, re-design, test, and again and again. But nevertheless it was a fun project that I consider either turning into business (highly unlikely since I have a good day job as a software engineer) or just share it for free.