It can take a lot of effort to throw topwater for tuna. One way to save some energy and use less effort is to throw it underhanded or backhanded like in tennis. Mark Davis has had a lot of success topwater fishing for tuna with the underhand throwing method as it takes less arm effort because it uses the entire upper body, helping you fish all day long. Mix up your throwing method and stay prepared for when that big tuna crushes your topwater bait.