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Thoughts...
Dash-Helix10 sonar/GPS for mapping and 2d
Dash-Helix12 chirp/Si-scanning
Bow-Helix10 Di/GPS- 2d,Di, mapping
Bow-Helix12 chirp/GPS -360

So I'm thinking about updating my 1198's. Purchased a helix10 sonar/gps last week and it arrived today. Unit looks great but ,my question is... Should I go w/the helix12 for the wider screen, if I...