I also have an 05 byerly. great board. the byerly has weighted rods running the length of the board to help you with your kickflips. if your more into shuv-its, i'de go with the catylis. it has weighted rods running across the middle to help you do the shuv-it and its longer to help you go wake to wake. that doesnt mean that you cant do all that with only 1 board. it just helps. i would definitely recomend any of the hyperlite board including the karma.
hope this helps