I have two or three twisties that have made it into the rotation of bottles... and I figure I will keep using them until they break. I am using the two handle capper and so far I have gotten 8 to 10 uses out of them, and the neat thing is they do twist off!!
However, I have noticed that the seal is not as good as other bottles. So if you are going to hold onto them for a while, I would stay away from the twisties.