I suppose your aim is warm water and calm conditions then. I have been out in a kayak in rought conditions in cold water. Missed on the brace, did not know how to roll, wet exit. After three attempts at re-entry, I swam to shore while supporting myself on the inverted kayak. Not much fun at 63deg north in october. Nobody to do an assisted entry with, as this was before the kayak craze hit. I would not go out in anything but a dead calm in a kayak I could not do proper braces and rolls with. I have since perfected several rolls and become both older and wiser. My point is, that it is not as easy as it sounds to simply hop back on if it is choppy or even breaking waves with strong winds, and those are the conditions you capsize in.

The Mirage drive looks pretty good, you have really done something good with the propulsion system. The whole control and propulsion system looks functional and show "out of the box" thinking! Even if I myself am too traditional to let go of the paddle.
I know one of the resellers of the Adventure Island here in Norway, and he say that interest is high and he has sold serveral already.