Back in 2003 I demo'd the JP 130 freeride and Starboard carve 130. JP felt a bit faster (I thought at the time) so I went with it.
Turned out it was great on flat water, but as soon as Port Phillip bay got choppy I regretted it cos it was far too bouncy. The Starboard carve was much smoother (a lot more V) and turned rail to rail better. Ended upswapping the JP for a Mistral Vision 130, which rode a lot more smoothly like the Carve.

Since I have realised they probably weren't any slower than the JP they just felt that way cos they cruised so smoothly.
I agree with the guy who said go with a starboard carve of whatever size you need. Tuttle box and great construction. Also 2nd hand boards of this literage usually stay in pretty good nick, cos of lighter wind use.