Snow Dog,

I think the issue was lack of power for me.  That, and in the Prism you are lower in the boat and then reaching the paddle out the fattest part of it.  I couldn't get a good feel for making it track straight.  This was early in my trip and I switched to the Kayak paddle.  Eventually, I figured out that even with the kayak paddle you needed to load the canoe in balance front and back.  That made a difference and I suppose it would make a difference with a regular paddle too.  I really liked the Prism, I just don't want to commit to one until I can figure out how not to need a kayak paddle.