My test proved that Sea Ray’s 230 SLX with ATC combines the sterndrive benefits with damned good wakes. For cruising, the ATC tabs, hinged along the keel and spreading from keel to chine, tuck up flush with the running surface. In that position, the 230 presents wave-cleaving deadrise to the water, delivering the soft runabout ride. Deployed, the outboard tab edges drop level with the keel to flatten the effective deadrise, putting up crisply edged wakes. ATC also allows the 230 to plane into the very low teens, and when I punched the throttle, it leapt forward with stunningly minimal bow rise.