new rockford p2 15's

I recently saw these at a very reasonable price at a car audio shopt grand opening. I am interested in getting 3 15's to replace my 3 JL 12 w3's. I Have a soundstream class a 1000 watt rms amp to push them with. I was a little dissapointed when I only hit 139.3 db at my first spl competition. The guys at the shop suggested that I tune my box to 38 hz. It is now at the recommended 32hz that JL states. They also said building a different box wouldn't hurt. What do you guys think about the new Fosgate p2 15's. I want to maintain sound quality but I also want to not emberass myself if I decide to compete in spl again.

The new RF P2's are nice but I would go with the P3's to compete with the JLs you have.Do it right the first time