Avoid the Hook series unless it comes with 50hz or 70hz low/med transducer. You won't be able to hold bottom due to the higher frequencies and low output power from the hook series.
If budget is a primary consideration take a look at a Garmin Echomap 64cv not the 63 series which comes with freshwater maps. Garmin also has a new Striker Vivid series coming out but make sure you get one with the right transducer.
Check out this video for some good info and subscribe to a cool local guys channel
https://youtu.be/KXHLbN9cnFE
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