I finally got out on the water this afternoon to play around with my 998SI. I spent some time going over some areas I knew really well so I could get a feel for reading the SI image.
So, since I now had a new trail created by this unit, I saved the trail I had followed, exported the data to an SD chip, and loaded it into HumminbirdPC. When I look at the trail point data,
all the depth values are zero. I was expecting the unit to have been recording depth along with the delta east/north values as it saved my trail points. I didn't see a menu option to enable depth recording so thought maybe someone here can shed some light on it.