One good thing about those crude z-ends, in 25 years of flying, I've never had one come off. I can't say the same thing about ball joints, snapper keepers, wheel collars, etc. I use sullivan clevises on the horn end and those agricultural and crude z-ends on the servo end. If you set you plane up correctly, you should only need minor trim adjustments on the clevis end. I agree with Minn, I've used all of the afore mentioned methods, what ever works for you!