You're not wrong, but also the minimum foiling speed for this particular boat is listed at 17 knots. If you're navigating a speed boat through rough seas at 17

You're not wrong, but also the minimum foiling speed for this particular boat is listed at 17 knots. If you're navigating a speed boat through rough seas at 17 knots you're a braver person than I am for sure. :o) Below that it seems to me like it behaves more or less like a regular boat. Regardless, I'd probably avoid speeds above 10 knots if I found myself in relatively high seas, and I'd just avoid going out in that kind of boat altogether if I had the option. If you do find yourself in that kind of sea though my experience is that most swells tend to come from one direction so you can find a good bearing surf the waves, zig-zagging if need be. Adjusting speed as need be is crucial in rough seas for sure. It does have a reasonable draft without the foils extended it seems, 1 meter, and at 2.4 meters wide it seems like it could be pretty stable actually. It'll be interesting to see once my buddy gets his delivered.