I have this bike from 1970s that I started to use again I put on new wheels and shifters and had this nice looking seat post around and decided to replace it also. It went in kind of stiff, so I took it out before it went down too much, it was a very hard effort. I put my foot on top of BB and clamped the post with locking pliers with some padding around jaws and by slight turning back and forth while pulling up, I managed to get it out. I greased it, then put it in and it was still not easy. I stopped before achieving the 'measured height' and tested the it riding the bike and it needed to come down another half inch or so.

It didn't want to go in but I managed to punch it down and now I ride the bike for a number of years and hope the time will never come it will need to be removed or even just height adjusted. I think it is hopelessly stuck. That bolt which is supposed to hold the post in position is now just decorative, I didn't even bother to tighten it too much, just so it doesn't get shaken out and fall off. I imagine it would need a puller like this one here.

Whenever I am reminded of it like this post here or just casting my eye on it sometimes, I don't feel good about it. Its like confession telling it here, not sure it will ease up on my conscience, since I am otherwise mechanically quite minded and this feels like I've done a pigs job.