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I use my Humminbird 788 on the ice and love it. It is very responsive and provides a 5second history of what is happening under the ice. It is so easy to interpret that I have to give it to my girlfriend when she comes with. I prefer the Humminbird to my FL8. I have not experienced any screen slow down due to the cold but I don't open ice fish for long below 0 degrees. Below 0 degrees I primarily fish out of the icehouse.I use an Iceducer and bought an extra power-cord and mount so I didn't have remove them from the boat.
Anyone try side imaging through the ice? "100ft to the right.......quick drill a hole, just saw a walleye"..................not this weekend but next i will give it a shot. Heading to the Great Eastern Whiteout this weekend!!!