I feel pretty confident that you will have good success having it placed in that area. My original Lowrance puck was epoxied there from the Triton factory, and my last two Humminbird pucks have worked as well in those areas up on plane and 100% of the time when running. My brother has a TR186 and he has also had the same results by using those transom areas for his transducer pucks. I think that is the sweet spot for these Tritons.