Have watched Facebook videos of people using hammer drills, on the hammer setting, with a modified bit with a socket on the end to vibrate seized nuts or Then this frees the nut/bolt to be unscrewed.
Hence the idea that forcing the seat post to move down will break the corrosion so I can remove the seat post by twisting or pulling.
It may well work. I guess it just depends how much post is stuck in the frame and seized it is. If you can get it to move even a tiny bit then you can get it out, in my experience. Good luck with it.
Have watched Facebook videos of people using hammer drills, on the hammer setting, with a modified bit with a socket on the end to vibrate seized nuts or Then this frees the nut/bolt to be unscrewed.
Hence the idea that forcing the seat post to move down will break the corrosion so I can remove the seat post by twisting or pulling.