Hello I have two Helix units a G3N 9 DI and a G3N 10 SI networked together I know they won't share mapping you need a card for each if you want the card on both units. If I buy a lake chart on the fishsmart app on the phone and I upload them to the unit will it share them? If not can I load them on both? Once the lake is uploaded is it there for good or will I have to reload for some reason?