Sea Ray molds a solid area in their hulls for mounting transducers, intake/seacocks, etc. That area is safe and will avoid penetration into the core, if your model has a cored hull. If ll you are doing is adding a bottom machine/fish finder, then I don't think you need a paddle wheel transducer. Match your needs with the transducer.......if you want to know the specis and count the scales on the fish, then you would need a very spohisticated transducer, but if you just want an accurate display of the bottom contour you can probably do what you want with a simple flush mount transducer with some angle deflection built into its design. Take a look at the Airmar website and you will get a good idea of what is available.
