Whoo!! This is awesome! Almost too good to play with though...
I was very much into Technic Lego, up to a time where it could probably be considered childish!
I especially enjoyed constructing things from scratch. The masterpiece was maybe the reconstruction of the Sikorsky S-58T "Screaming Mimi" that was featured in the TV series "Riptide". it was not very accurate,and ended up quite differently, but it had a gatling gun, retractable gear, various doors, and of course moving rotors etc...
The last time I played with Lego was actually only a few months ago! I wanted to see if I could construct a heli with a moving swashplate and adjustable pitch. Of course I succeeded!
But you can only move it up and down and not sway it into a particular direction. Also the tail rotor is not adjustable... Only because I ran out of material, of course! Hehe...