Hey Don... it's good to hear from you, how have you been?
As an owner of the 997c SI I was thankful to hear that this down scanning would be FREE for Humminbird customers. I can't wait to check it out (when our bigger lakes thaw out).
On a side note, I read in one of my catelogs (I believe Cabelas) that this will not work with the 797c. Can you confirm that information for us?
Talk to you soon...
Brendan
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Brendan Cucinello : Bassin' USA President