[Paddlewise] advanced sea kayak

A friend asked me what the difference was between an
"advanced" sea kayak and a beginner/advanced beginner sea kayak.

I'm having trouble coming up with an explanation.

Is it width, volume, length, outfitting?
Initial stability?

If it's outfitting does that mean a fully outfitted Chinook is
an advanced boat? ;-)

I would expect to classify sea kayaks with a beam under 21 inches (53 cm)
as advanced.  But width alone seems like a very weak way of defining an 
what makes an advanced boat.  Besides that would make my 22 inch beam
VCP PinTail a beginner boat ;-)

kirk

***************************************************************************
PaddleWise Paddling Mailing List
Submissions:     paddlewise_at_lists.intelenet.net
Subscriptions:   paddlewise-request_at_lists.intelenet.net
Website:         http://www.gasp-seakayak.net/paddlewise/
***************************************************************************