I was hoping that someone could give me a little insight on the two and why I should buy one vs. the other? The only difference is that the seacharter has dual freq. and 4000 watts for depths to 1500ft the fishelite goes to 800ft last time I checked there where no lakes that deep around central Ohio although I think that there is about 1000 ft of muck @ Indian Lake.(lol) Is the dual freq. worth the extra $ ???