I'm looking replacing my old graph and man things have gotten confusing, not that it's hard to confuse me but anyway I'm looking at a Lowrance hds 7 gen 3. What I'm wondering is it worth the extra money to go with a 3D transducer vs. a total scan transducer, the total scan will give both side image and down image and you can overlay the two. 1100.00 vs. 1700.00
thanks
David