This is what I do because it seems to be suprisingly very robust. Just take a small drill bit and drill a hole between the tail motor mount and the gear drive hole. Use fuel tubing to keep it in place. It so far has not let me down - and I've bent that thing in every direction doing repairs on the head. If you have a training gear set-you can just use those rods. The combined extra rod and fuel tubing I got from that training set have really saved me money in the long run. O, and if you're insane like kyle- then you can leave it long on both ends so you can hover inverted with the head touching the floor.

Here's a pic: