A no on the double wire from me as well.
The wire is thin, and works on the same general principle as a rope halter. Smaller area giving pressure, more "bite". The difference is, the rope halter goes on the outside of the horse's head, the wire goes inside his sensitive mouth. It just has a lot of bite, and no horse needs that kind of pressure in his mouth.
The kimberwicke can be a nice bit. My sis uses one on her QH, who is just very used to a curb from his western background. The thing is, the horse also does everything asked of him nicely in a snaffle. The kimberwicke just seems to make him happier, so she uses it.
My advice to you would be to work on the "running through" behavior in a snaffle. It CAN be fixed in any situation. Trust me on that
. In the meantime, the kimberwick shouldn't cause you any trouble, and I would definitely pick that over the twisted wire.