Quote:

In any case, I'd like to hear how folks content with narrow channels with a double blade.  I can envision some issues with paddling up Cutty Creek toward Baird that could get a little dicey because of the width of the channel

I'm almost exclusively a double paddle user, but bring a bentshaft for times the double paddle won't get the job done.
Slow trolling or just a leisurely paddle, I'll use the single and either a modified J like IC, or a C stroke like M_M recommends.

The year I went from Wolseley up Bearpelt creek, I used both paddles as conditions warranted. My double paddle is longer than you would use in a true solo. It's 9', longer as I'm paddling a tandem back wards. In narrow sections I used my single and in one section, stood and used the double paddle as a push pole rather than get out a wade. I've done the same thing numerous times on Jean Creek. Probably not advisable in a true narrow solo, but in a loaded tandem as long as you have a good center of balance, easier than you might think.
I use a " rolling" touring double paddle stroke, not a " windmill" type stroke you see kayakers use when racing/competing. I needed the extra length so I can keep shaft relatively level and not continually bang the gunnel's :-[
I think Wally is right on using what works for you and not get hung up on whether your doing it like the experts advise.
We all drive vehicles and are driving skills vary. I'd like to have the driving skills of a Mario Andretti, but I don't and still manage to get around and enjoy the ride ;)
The more you paddle, the more time you have to polish your skills and learn and practice the classic paddling strokes.
Most of us don't have that luxury, so we do the best we can with what we have.
I don't care what stroke or paddle you use, just don't be one of those paddlers that are heard before seen, becasue their banging the gunnel's/hull on every stroke, especially on Aluminum canoes ;D