RE: Kyosho Osmose 70, Sort of build thread (slow..)
I've been using the same type of connectors for more than 20 years in various sizes of planes.
It is a whole lot better than Z-bend on easiness.
Never had one coming loose. I do check them occasionally.
I do use them on pattern planes if I don't use ballbearing clevis/adjuster.
Kyosho and several other manufacturers' ARFs come with those most of the times. It is much better than those Dubro/GP ones that use steel/plastic washer on the back.
World model has two different sizes (height and wire diameter).
Just make sure to put a little locktite on the nut. If there is a flat washer, make sure to use it.
Drilling the servo horn for correct size make it work really good.