keeping a loaded tripping canoe moving at an all day relaxing stroke while watching what you came to see in my experience is enhanced by that loong slow stroke, way beyond my hip.
I I just can't see paddling a loaded tripping canoe and stopping your stroke at the hip all day,
In fairness, I think all YC was doing in that post was listing common factors that induce yaw. Carrying the power phase of the forward stroke further and further behind the hip obviously is one such factor.
Moreover, the further one powers the paddle behind the hip, the more one is simply lifting water (and the bow of the canoe) with a rapidly diminishing forward propulsion component and a rapidly increasing vertical bobbing component. However, if one is correcting while the blade is "back there" behind the hip, then the yaw and bob can be eliminated.
Although your video was really too brief to see, Robin, when you were paddling lefty you seemed to be correcting as the blade passed your hip because your grip wrist was turning increasingly downward. You seemed to be using a correcting blend of a pitching-J stroke and a Canadian return stroke.
Additionally, the length of the paddle affects the ability to carry a paddle much behind the hip. I paddle all canoes and all loads with a 48.5" carbon bent paddle, using various intermixed single-sided correction strokes (C, pitch, J, Canadian). I
can't carry such a short paddle much behind the hip. Yet I paddle very leisurely and effortlessly at a fairly slow stroke rate. If I were using a long paddle, especially a long-bladed paddle, I would have trouble getting it as vertical as I want it; and also trouble removing it at the hip, because such a paddle is simply too long for me to do so without feeling clumsy or awkward.