Wouter, what's the advantage of a P18 over a P18-2?

I have the Compac 16 for e-z, two-lines-and-a-tiller sailing, but with a Portsmouth rating of 108.7, you can see why I'm looking at cats. I'm very tempted to open up the budget to pick up a NACRA 6.0 or Hobie Miracle, but I recognize that those are likely to be too much boat for a cat newbie (though that's never stopped me before) so I'm inclined at this point to keep a cap on the budget and size and go with a NACRA 5.5, one of the TheMightyHobie18 models or the P18-2. Potential crew weight of 320 - 350 lbs seems to almost demand the 18 footers. I'm not dismissing the Mysteres, I've just never seen one listed for sale within 500 miles of here.

I appreciate all the comments and advice, even the F16 sidetrack, because it's all gotten me to thinking what I really want out of a cat and that's to go fast, to compete with one of my kids as crew and to occasionally take the family out, not shallow water sailing or a kid play boat. The local club is mostly 18's and 20's, so showing up with a P16 could lead to a lonely existance out on the bay.

Now to see if I can find one before the next Slip to Ship.