I'm still using this as my go to, most efficient and powerful stroke. I use it when I want maximum power but also when paddling at a more gentle rate for efficiency. What has helped me get a better catch and less cavitation is thinking about the stroke in two phases, power and recovery. The power phase doesn't start until the whole blade is submerged. It ends as soon as my arms reach the bottom of the rotation. The recovery starts at the bottom of the rotation and doesn't end until the blade is completely submerged again. By separating the two phases like this I find I get less noticeable cavitation, resulting in being able to get more weight on the paddle. This added weight directly results in moving the boat forward.
For best results your paddle needs to be vertical during the short power phase. I don't feel like I'm pulling back with the paddle, it's more pushing down. Even though your paddle is vertical in the water you can feel that it is pulling a lot of weight. The weight you feel is your boat moving forward.
The motion of my arms, once the blade is planted, is pretty much how they would fall if I was relying on gravity alone. I had been using this type of stroke for quite a while for casual easy paddling, but didn't think to use it as a power stroke until much later. I had described this stroke on here one time, joking that if I wanted to go faster I needed to switch to a heavier paddle.
This is especially a great stroke when using a thin bladed otter tail paddle, as it uses the whole blade during the power phase. It is a much different stroke than what Alexandra Conover uses with her ash beavertail. With her stroke the paddle rotates where her lower hand is on the shaft. This works for her because it is more efficient to rotate a heavy paddle near the throat than moving it the way Puakea does. It works well with the beavertail blade because the widest part of the paddle is at the bottom and gets more leverage. Using an otter tail in the same way won't give you as much power. Sometimes the most efficient stroke depends on your paddle and also how much energy you want to put into it.