U.S.E posts were only supplied in 25.0mm for a while and you used a shin to make them fit your frame. I searched ebay earlier though and there's plenty posts available down to 25.0mm.
I just wondered if anyone had experience of issues from using such shimmed posts.
I'm after an Ergopost or Ellipse in 25.0 and was hoping you had a treasure-trove of NOS goodies that you didn't need and wanted to sell me cheaply. As you were.
What's this 25.0 seatpost you speak of? (I'm on the lookout for one)