I agree on the BB's. I know Rob makes 2 or 3 different gauges of board for the IQ Raw (for strength), might be worth a call to em to find out if they do the same for the 05-06 IQ.
The one thing I will say that's superior about the WRPs is the extra height their logo adds for riveting area. But, check each hole up there before you drill it...some of them can't be used due to track interference.
Lastly, regardless of what board you use, spend the extra money and get some Q rivets. The rivets that come with any of the boards just don't hold, especially in the side of the tunnel where they're constantly being stretched.