Thanks for that.. I'm an old fart.. used to lifetime regina freewheels. :-o went googling.. getting a sense about this. and imagine biggest risk on ebay is a ground down used item. I like one post I saw: "10 speed record cassette. TOASTED" and later: "THIS CASSETTE IS WORN OUT AND PROBABLY WILL NOT RIDE SMOOTHLY ON YOUR BIKE"

...at least there are still some honest folk.