Looking at upgrading my Electronics currently have a Humminbird 997 si and 798 si . Thinking I'm either going to get the Hbird 999si and keep the 798si on Bow or Upgrade to the new Garmin 93SV OR 94SV with a smaller Garmin on Bow . I really like the Garmin unit's and the new Maps but have always been a Humminbird guy since the first 3D wide unit I purchased back in early 90's any thought's or suggestions would be appreciated