2. There isn't much 'park n play' - maybe 6 spots the whole trip but they are pretty good at certain levels.
3. the flatwater doesn't go much faster in an 8'6'' creek boat than a 6' playboat, the rafts out-pace them all, but the wind will certainly affect those phat boats more (upstream in the afternoon).
4. IF you don't like to wave-wheel or play little pourovers on the sides, but just surf waves, then you won't be missing much in a river-runner with a planing hull.
5. If you can wavewheel at all now, you'll be a virtuoso by the end if you take a playboat AND get some of the biggest tricks of your life.
6. The boats others in your group are paddling will set the pace for the kayakers - unless you do. I was the only squirt boater among long, fat boats and learned to carry my own lunch.
ASK FOR KAYAK GUIDES if you are commercial - Phil and Hilde's experience with the rapids and water levels was just an amazing resource!