Doc :
You may want to go to Cabelas web site and read the reviews on the HDS models form Lowrance. Sounds like they have a few bugs to work out. The way companies push their products from research to market leaves a lot to be desired.
Personally I rarely buy something its first year of production. I figure let some body else find out if its worth it or not. Most stuff falls way short of its marketing hype. For example I am still extemely happy that I never " upgraded " to Windows Vista.
Garminarmin gpsmap 1040 xs networked with Garmin gpsmap 1242 xsv , Panoptix PS 30 and PS 31. Livescope LVS 32
Ice rig Echomap Ultra 106SV with LVS 12 and GT10-IF