Trim tabs on the other hand can be very effectively used to “trip” a boat back down just as it comes off of a wave crest. (You just can’t do that with drive trim.) When you see somebody really driving a high performance boat correctly in rough water, the bow will not be randomly aimed at the sky. You’ll see a nice, level ride attitude almost no matter what kind of wave is encountered. When you see somebody pointed at the sky – and they have trim tabs – that’s because they either didn’t know how to use them or didn’t have them set properly. Just like learning how much trim to use on your boat, proper use of trim tabs is one of those things you have to learn through experience.