It's hard to compare those 2 Bows. Kind of like Apples to Oranges. The Katera is Hoyt's speed bow. If you are looking for speed then shoot the new Airbornes. The 82 and 101 are both pretty Awesome. If you are looking for the Quietest, Shockfree bows around the General and the Guardian are both at or near the top in that dept. Make a list of what you want or expect from your bow in the order of importance, and then shoot the Bows most likely to fit your needs/wants. You really can't shoot too many bows. I wouldn't limit myself to 2 models.

Dan