Gary,

The nylon transducer works fine but I find any applications that use
it to "shoot thru the hull" is not nearly as accurate as one suspended
off the rear of the reansom. After about 60ft of water depth you lose
alot of the bottom profile. There is a reason why the pro's use the
bronze thru hull with the fairing block but it isn't necessary with
transom mount being the next best thing.One other note,If you do use
the thru hull fairing block install, it has to be enough to the
outside and forward enough to not cause cavitation of the outboard.