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- Dec 7, 2015
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I'm looking at putting a new sonar on my boat. This is a smaller fishing boat used primarily for fishing the Missouri. I think I've narrowed down my choice to a Humminbird Helix 5. The questions is do I go DI for $350 or SI for $500? Is down imaging going to give me much coverage in the shallow water or am i better of spending the extra to get side imaging? In my head it seems like the side imaging would be much better on the river, but don't want to waste money if its not. I'm replacing a 15 year old depth finder so either of these will be light years ahead for me.