Sure Neil, I'm willing to experiment with the Wing's navi system. (I'm done with fighting with Garmin to get up-to-date maps on a more frequent basis and at a lower cost. Up here in Canada, they are charging $115 CAN +shipping for a 2013.40 map set & FW update. I have other issues with Garmin too, but that's another story.)

As I explained in the other thread (in reply to your post), I found the GW had trouble loading the 2015.10 map even though it seemed to load without any warnings. There was no street level detail no matter how much I zoomed in. I didn't try to locate any POIs though... I just reverted back to the old card. And yes and no on the backup... I kept my original card and used another 2GB card I had to update my FW to 4.70 and maps to the 2013.30 set I had already on my iMac (with an unlock code for another unit).

But that map is over a year old already and would like to get a newer one... thus the 2015.10 IMG unlocked trial, which didn't work because of the size (I'm assuming... 2.33 GB on a 4GB card).