I'm currently using a 240mm Suisin IH on loan from daveb. It's a phenomenal knife with a great feel. It does seem to be a bit on the petit side for a 240, but it looks and feels great and has excellent edge retention. Really nice profile and grind too. I would highly recommend it.
I've had no experience with a KS other than a Richmond that was supposed to be similar in specs to the KS. I didn't like it, but that's probably because it was a poor representation of the style.