Garmin RV 1090 Data card vs internal storage

[NowGo]

I am a long time Garmin GPS user, with several devices registered over the years. I have used Basecamp to set up waypoints and to download tracks as a historical map record of where I have been.

I always add the maximum size memory card the GPS will handle when I get a new device.

I use RVTW to plan my trips and I really like it. I have 13 individual trips for a contiguous journey set up with both stops and potential stops over the next 5 months. (I keep the trips manageable by setting up smaller trips in RVTW)

I use Basecamp to enter all of the waypoints (stops / potential stops) I will place in the Garmin for potential selection of the waypoints as actual stops when I create 13 routes (not trips) to match the RVTW trips by name.

Next I select only the stops as I create routes in the Garmin.

I am about to enter several waypoints into the Garmin (from RVTW), and I find myself facing a question I have had many times when using my GPS devices: When I copy ("send to" in Basecamp) the waypoints from Basecamp to the Garmin GPS should I be placing them on the card or in the internal storage?

I have always thought the internal storage was best left for the maps, as I believed the device would be more responsive using internal memory. Then when the maps get larger and larger there would be room for them. (As best I know the device will automatically start using the memory card when the internal memory no longer has room for a new map, but until then I like to try to keep from placing data on the internal memory).

This also begs the question of whether the Garmin device software can handle data storage management itself and it really doesn't make a hill of beans difference where I place the waypoints ?

[Persistent]

A good question for the Garmin forum.

https://forums.garmin.com/apps-software/