Unless you have the special clamp for carbon rails, side clamping posts are non compatible too. I have the post you look to have bought and mines brilliant. No slipping
'special clamp for carbon rails'
You mean oval, 7x9mm (C13 Brooks), right? As I just ordered that, no additional carbon magic.
@Roman started
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Unless you have the special clamp for carbon rails, side clamping posts are non compatible too. I have the post you look to have bought and mines brilliant. No slipping