I am a big hoover fan and making my hoover 510 work has truly become my sprucegoose so too speak. would a hoover fan please give me a timeline of the hoover twinnys from the beginning. I know they started out in the uk and were then made over here as well. I have a chance to get one of the real early ones from 61 I believe. I know they were a different animal all together so any advice would be welcomed. thanks Bill