I have a 2002 Starcraft 18' pontoon boat. It has an Eagle fish finder with the sonar transponder mounted on the usual bracket at the end of the 'toon log. The transponder is mounted to the back side of the bracket and extends out to the back, with the center line in line with the bottom of the bracket. Just how you should mount one to match the hull bottom of a non-pontoon boat. My question has to do with installing the new speed/temp sensor I purchased for the Eagle. The bottom of the mounting bracket would be a nice place to mount it, but I know that turbulence can negatively impact sonar readings. Would mounting the speed/temp sensor on the bottom of the bracket, just forward of the transponder cause enough turbulence to create issues?