But jet boats are slippery, skittering out of their turns or losing their track, reminiscent of a wakeboard rider cutting back and forth, right? Wrong. In 2015, Yamaha introduced what it calls an articulating keel. Think of a small rudder set near the jet-pump nozzle as sort of an extension of the hull’s keel. In turns, it carves into the water, holding the stern’s trajectory in line with the steering input. When we spun the wheel to port, the SX 195 turned hard without any drift or sliding — something that was not possible in jet boats before this system. It not only eliminated any handling objection I’ve ever had to jets, it capitalized on the nimble turning radius allowed by in-line propulsion, creating a new standard for runabout maneuverability.