Hi, this is probably just an example of me overthinking something simple, but here is my question: If someone is coming over for a ride and I lend them a bike that has a fluted seat post, and they need to lower it so much that the flutes are into the seat tube past the clamp, is this going to be ok? Just for a ride or two, say, will the clamp hold? Is it a question of try it and see? Or should I swap the seat post out which would be kind of annoying.

Also apologies if I don't reply right away it's almost bedtime here!