I would concur with comment #1.
I would never bag on a grado, they are great for what they are, especially in the inexpensive aisle. The few I've heard with more money involved I wouldn't care to own.
However, you're comparing apples and oranges...
If you can't swing for the top dyna, try the xx-2.
It would only make sense since you have the arm.
Good luck...
also, been hearing good things about the cartridgeman's new goodies, and not a bad price.