One thing I need to let everyone know (some of you may already know) is on the control horns that are supplied with the planes(Visa Pass-Port's and Onas also) the clevis has a ball bearning in it. Make sure the when you put the screw through the clevis you do so on the side where you can see most of the bearning. If not the clevis will slid off of the bearning. They are made this way so the bearning can be replaced. Since Tony has the first Onas I hope he can confirm this.
Just let me know if you have any questions