I'm a solder clevis fan myself. Though I use Z bends regularly when I'm too cheap to go to the hobby shop. I like the clevis because getting a "perfect" Z-bend in just the right place can be a bit of a challenge. To prevent the clevis from opening up, I use the standard trick of slipping a small piece of fuel tubing over the clevis to hold it shut. Don't fear the solder clevis, follow the soldering tips the others have given and you will be fine. Me? I use steel wool, solder flux, and rosin core solder. I've never had a clevis let go, even under some pretty wicked impacts.