Quote Originally Posted by Flickerdart View Post
To prevent Epic nonsense, just say that RHD don't count. You need either 21 character levels, or a CR of 21 or higher if you are a monster.
Still causes problems. Several prestige classes can now be entered at a significantly lower level, which can result in some seriously broken builds.

Sure, you could rule RHD don't count for meeting prerequisites either, but at that point I recommend just asking your DM to houserule a few of the RHD away. It's easier than taking an already inelegant system and twisting it to do the opposite it was intended to do.