I have a Lund Tyee and put the elite 7 on it. It took several trips and adjustments to get to read. I still get some clutter but you can tell the fish spikes from it. get it as far away from the prop wash as possible and use a straight edge off the bottom of boat so the transducer sits halfway down on inside edge. Run it and have someone watch to make sure it is skimming the water and it is in the cleanest water coming off the boat. (make sure it does not line up with rows of rivets). Then mark some walleye at trolling speed and check the tail marks this will tell you up or down. I can see the bottom and fish running 35mph (I still get some clutter at this speed). Glass haul is alot better image due to is smooth haul design. This unit has been good to me,I like it better than the hds unit I have for sonar and I even put the airmar p66 transducer on the hds to try for a better image. Almost forgot, put a tranducer board on the boat. You can get them at Cabelas or if you have a 3/4 piece of umhw will work.(saves holes in the transom)