Kerry wrote on Jul 20^th, 2010 at 12:58pm:

I always carry a second paddle but I don't consider it a spare.  My preferred paddle is a Stringer style and is very light and responsive - perfect for resonably still, deep lakes and rivers. But when I hit big wind or shallow streams I need something else.  So I couldn't really imagine taking only one paddle with me.

This is how I feel about it as well.  The right tool for the right job.  Long narrow blade for deep water.  Short wide blade for shallows.