I remember when Twista first came out. He made the Guiness Book Of World Records for the fastest rapper. They counted how many syllables per minute.
That was a cool sidetone, but when you really think about it, who wants to listen to a rapper that raps so fast that you can't make out what he's saying?
I mean seriously, what's the point of buying a CD if you know you won't be able to understand the words?