I pretty much used the graph for about a year without seriously reading the manual, just skimming for what I needed to know. Then I decided to get more serious about it so I just read through the manual and made those notes.

The alarms on the lowrance are extremely annoying. The WAAS aquired thing is retarded if you are at the delta and it keeps losing signal it goes on and off constantly. I think the best thing I learned from reading the manual was the stop chart option to turn off the annoying clicking of the graph but still have the GPS functions.

I need to get lowrance map create and a navionics chip next... The lowrance chip is good but doesn't have don pedro which is annoying.