I got mine from HeliHobby 7 items down the page [link]http://helihobby.com/html/micro_blade_helicopter.html[/link] I ordered the $21.99 version. No "mods" but you pretty much have to use the #4 spacer/washer btween the gear and frame or the motor pinion wont lineup right. And then "CHECK AND READJUST PITCH". The DD is look nice guys mine did not arrive today so maybe monday or so.