Parks or Byerly?

I am wanting some input on a new board. I am currently looking at the Byerly and Parks board 140ish size. I was wanting to know the difference between the two. I seem to like to ride a little slower than average which makes me lean toward Byerly. I also like a board that tracks well which makes me lean toward Parks. I do about three inverts and can land heelside 3's and an occaional 5. I currently ride a double up Greg Neleson 141 and just dont seem to get the pop im looking for. I am wanting the 3 stage rocker.

I really dont want to spend $25 a day to demo each of them because $50 would put me well on the way to a 04 or 05 hyperlite. Any input is appreciated.