Anyone here ever taken a seat post to a machine shop for re-sizing? When I mean re-sizing I mean taking a lathe and milling it down in size. I have a beautiful NOS Fluted SR Royal seatpost that's a 26.8 and I need a 26.6. I was thinking of taking to a friends' machine shop and milling it down to a 26.6 which is only .2 tenths of a millimeter or .0078 up only to the insertion line. He's done this before for one of his workers bikes and says it's a piece of cake. Any comments? Here's a pic of the post.