Andrew, yes, they are the re-cones you put together for Scott.
Mike, I got the Navigator to a 152 at 51 Hz before I got bored with it. I want to do something more fun. The Navigator is already sold and the 18s are next to go. At the Poor Boyz show, I had more fun doing a 138.8 with 2 JL 8W0s and 200 watts than I ever did with the single 18.
I'm thinking a small car (CRX, Honda hatch, Eclipse, Focus, etc.) with a single driver (no bigger than a 12) and my two DD M3as strapped would be a lot of fun to do.
For now, the 18s will be in the F150. Just in case there are any local(ish) shows this summer. If they sell, I'll go back to the 8s.