I got that new transducer and installed it. Even upgraded the software with the new SI functions. I have the 797. Still really not pleased with the images at all. Even sent it back to humminbird for a test. They found no problem. With the bigger transducer I loose depth at speed(25mph). It only picks up the bottom at slower speed. As far as the SI picture with the enhanced software. Hmmm still not a 1000.000 worth in my book. I use the Gps more than anything. Hate the SI


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