I'm probably gonna pick one of these up and throw a kwik stud on it. For around $50 they seem like a heck of a deal. Glad to her the quad stop (?) isn't obnoxious, as that struck me as a fairly bizarre feature.
Almost forgot, I'd bet money that the 15° they're referring to is per side, so 30° inclusive. That means the Sharpmaker should work on it just fine.