Greg
You are absolutely right, 4.700 update has improved my 1197 overall.
The color using amber2 gives a clearer picture. The GPS readings are updated at a much faster response rate and the accuracy of my AS GRHA GPS Receiver has improved the charting from appx. 7 ft to 3 ft. consistently.
I have had my boat out at least 10 times since making the update. Since I would rather fish then play with my unit, there are probably other improvements that I have not played with yet. Can't wait for the next update.
George