I have seen the Ultimate at the gym we fly in... not too impressed.

The Tensor isn't out yet.

A lightweight shocky with the proper motor mount by a gentleman here on RCU is very sturdy. I've had head-on mid-airs, crashes, etc and it keeps on going. Other guys without the motor mount have their front ends fall apart all the time. Mine appears to be invincible. In a really hard mid-air, the tape holding the motor on broke, the motor came unplugged (Deans 3-pin) and the whole unit, with prop and mount, shot off the plane. The plane was fine and so was the motor. Had it been glued onto the plane it would have been a disaster.

Here's his website:
http://home.comcast.net/~todd-hamilton/

I will have a Tensor when they come out... I'm curious. Fo now I really want the new YAK shocky!