Hi I ended up mounting the fish finder on the flat spot forward of the rudder control on the right hand side. The main reason I did this was my initial plan was to set it up like the SLH you tube outback with the cables running through the hatch ad therefore have a system where you can remove the unit and cables and store them inside. After being out in about 4 feet of wind driven swell I noticed that the waves coming over the bow were running around the hatch mold. When I got home I put the sounder cables through the hatch and ran the hose on the bow. Quite a of water leaked inot the hull, enough to make me reconsider the install. I put it on the gunnel so that I could reach the controls without having to lean forward. The reason I was going for the sail post mount was toavoid having to drill holes for cabling and ram post mount. I am almost phobic about drilling holes inyaks