I smash a lot and keep a lot of cheap folding mirrors on hand. They are not the best in the world. Nobody should get them. Everyone with a TW should not use them. I like RAM mount anything. I can build the space shuttle with RAM ball mounts and arms. They are made in the USA. Do any of yous guys use the ram mounted mirrors. It seem like they fold in easy enough. Double Take is also made in the USA. I have adaptors so nothing is counter threaded. There are a million ways to fab them on.