i have a 598 si. it has only one slot. i have watched videos about using humveiwer and google earth on you pc. seems amazing.

 

i also would love to have a maps chip like lake master or navionics.

 

so what would you do? record or have detailed maps?

 

i know the bottom contour of my regular lakes fairly well. i figured saving and viewing mould be helpful for finding unique little features to fish.

 

like wise i see a map chip as big advantage for new water.

 

anyone flip back and forth?

 

If you want to record, take screen snapshots, and do waypoint management, you have to remove your map card to do that on a blank formatted SD card. 

 

If you want to use your map card, you cannot do the above.

If you want to record, take screen snapshots, and do waypoint management, you have to remove your map card to do that on a blank formatted SD card. 

 

If you want to use your map card, you cannot do the above.

 

i know have two cards and cant do both at the same time.

 

what i am trying to get info on is which is more useful and what other people use most of the time.

6 of one, 1/2 dozen of the other. One thing you can do is use the map card with a split screen of your SI on your initial time checking out an area. You still have the ability to mark waypoints which are saved  to the unit, not the map card. On return visits, navigate to previously marked waypoints and then take screen shots.