I Really look forward to see what Lowrance comes up with. Roumers says that they should scan down to 60-70m with nice results.
I have the Humminbird 1197 and in the Baltic Sea, where its not so salt and therefore penetrates a bit better, I get nice results down to 47-50m.
I know a lot of people with towfish sonars, they get really good images of well know wrecks, but I find more new wrecks than all them together, as my sonar is always in the water!
Here is a few of my newest scans.
Firs one is S/S Ares, steamer sank in 1906, 68m long, second one is SMS Undine, German light cruiser, sank in 1915.
You can see on the log 1015 nautical miles with the sonar in the water in one year! How many has drawn a towfish that long