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.
Well if no one has tried I'll give it a go with an shitty socket and the seat post.
@lynx started
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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.