Sometimes HobbyLobby has them in stock. I got one a couple of weeks ago. Have bench run it only, so far, with a MA 8x4 regular prop. It generates loads of thrust. I ran it on 8 cells full throttle for about 2 minutes the first time holding it in my fingers and it just got warm in that time. A cobalt 400 I have got HOT in that same amount of time!
David