Not only can the clutch slip, but I just hated the "Rubber Chicken" bobbing of the main gun when at max or min elevation.

Here is another option:

http://heatarmor.com/joomla/index.ph...d=92&Itemid=29

This works if you use the ratcheted stick for gun elevation. Otherwise, every time you let go of the stick, the main gun will return to the neutral position.

If you want to use a self-centering stick for the main gun, then you just need to add Camera Position Controller. It should also take the place of the rate reducer

http://dionysusdesign.com/product_in...988d676be9f629

I used a Small Spektrum Servo (far right in photo), on a wood platform (Tiger I did not need the platform). With the Spektrum or any other programable radio you are able dial in the min and max elevation so as to not over stress the mechanism.