The dealer was suppose to install on the port side of the stern but it ended up dead center of hull. I get a great read below 5mph but above that and on plane, just a bunch of lines. I am using the transducer with 73DV at the dash area. What suggestions do you have. Its on a Ranger 1850 Reata. I noticed that its really not on straight. Should they move it to port side and should this improve the readings at 20mph plus. Appreciate your input