Seriously, if you are running the crappy transducer that came with your unit you are missing out. Airmar makes ducers compatable with all sonars makes. They offer thru hull, shoot thru, and transom mount models. My P66 transom mount does a great job and it's not even their best offering. What I like about the P66 is that it has a 45 degree beam at 50 Khz.

If you really want good info. on these transducers or any other sonar related questions, you need to give this guy a call. He is a sonar guru and can explain it all to you in understandable terms. He will bend over backwards to help.

Gil Travis
(800) 925-0341