Trim tabs also allow you to reduce your speed without falling off plane. “This might be the case, for instance, when running home in the chop on a windy afternoon,” says Johnson. If you need to reduce speed to avoid a pounding, deploy the tabs downward, he advises. The tabs can create enough lift to keep you on plane at lower speeds, and can also keep the bow down a bit to better knife through the waves, according to Johnson. You can use the same technique if you need to reduce speed while running on the flats. Deploying the trim tabs will keep the hull on plane, so you’ll draw less water.