Just used a CF to SD micro adapter to load a 2016 mb file of the 2015.20 mapset into my 2006 goldwing nav.

Loaded all of the 2015.20 mapset for the USA and Canada on a SD micro card using Mapsource. Installed the SD card into
a generic SD micro to Compact Flash adapter . Inserted into my 2006 Goldwing nav and it loaded the mapset
and calculated a route. All details are there and the routing works as expected.

The only difference I detected was at start-up the message Reading card is displayed briefly.

Am now trying to load all of the 2015.20 North America mapset, which is over 2300 mb, and see if it works.

Will post results after more playing.