I have researched the Cobra threads and found a few things but still not sure the best spot for installing a thru-hull transducer. Is the thickness of the hull too much in the bilge? If you put it somewhere between the two consoles underneath the floor drain will that be too far forward to make readings at speed? I was planning on using the Garmin GT15 in hull which is a very large 2D transducer but it has a lot of power. Any recommendations from you guys that have been able to get readings at fairly high speeds? Man that bilge is crowded.......