I bought a CB6000s about six months ago but had to return it as the pins dodn't line up perfectly with the holes in the ring. They were about 1.5mm off. And as a result of the added peasure on the joint, one of the pons came out. Can anyone who's bought one recently tell me if current stock still have this problem? You can only really tell if you look carefully when you slide the ring onto the pins, as it goes together without much force at all.