You definitely don't want to bend a KoolStop post. KS canti shoes use a hollow post threaded onto a stud in the shoe. If you bend it you create a real risk of a stress riser and possible failure.
I dom't know what you've heard, but I've never heard of mechanics bending canti shoe posts. If the post bolt has no provision for shoe alignment, you're probably better off tweaking the brake itself, where you can spread the load over a larger area.
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