I have a 2005 Tracker 175 bass boat with a factory installed Lowrance depth finder. This depth finder reads fine at idle speeds but when at plane and going down the lake, even slowly, there is no reading. I have been told turbulence from the ribs on an aluminum boat cause this. Has anyone personally experienced this in this same type of boat or do you have a depth finder that works all the time. If you have moved your transducer and it began working I would like to know where you moved it to. I dont really want to hit or miss drilling holes all over the boat and I would not like to buy a thru the hull transducer and find it doesnt work either. This boat comes as a factory assembled unit and I hate to think tracker marine deliberately installed a piece of equipment that they knew would not work properly from the get go. If its the boat hull, then no need to buy a bunch of depth finders that wont work either. Thanks for any assistance.