I have mounted two Lowrance fish locators. And of course the instruction booklet is unless. 1 is a Elite 5-DSI and the other is a Mark-5XPRO I am not fish finder savvy so I would like to invite anyone that IS or knows how to operate either one of this critters to join me on the lake of your choice in the central Arkansas area to show me how to use them. All expenses paid. PM me thanks guys.