pulleys

I posted this in the integra forum, but i realized this is probably the better forum to post this kind of question. I've been looking at underdrive pulleys. the problem is i dont know which one to get, aem or unorthodox. unorthodox is more expensive b/c it comes with a crank pulley and aem doesnt. aem claims they dont make a crank pulley because they say messing with the harmonic dampener is really bad for the motor. which one should i get?

In my opinion AEM's claims are a marketing ploy. I have not heard of anyone having problems with Unorthodox.