I have an older HDS-7 Live unit that came with the US Enhanced Basemaps and it was never upgraded to 'contour+' however the included basemaps have no contour lines or depth information at all... I thought this was odd as my old hook2 does show contours. I dug around in the settings and can't find anything obvious, am I missing something or does this version have no contour lines at all? Thank you!