Prior to purchasing the files from this site, I had installed other free POI speed camera files in my Zumo 550.
I found out on the weekend that the file I purchased does not have the speed limit in it for the speed cameras, but the free file does.
I know this because I went through a speed camera and the Zumo 550 gave me 2 warnings 1st said "speed alert 80km" some time before the camera site and then just before the camera a second alert came up saying "speed camera location" (although with completely wrong location info - said it was at an intersection in Coffs Harbour and I was actually at Tweed Heads). On scrolling the map I found two speed cameras in the Zumo at the one location, obviously they are the same but with slightly different positions, and therefore from different files. I also know that the free one had the speed data, because I have been through this camera before and been given the speed alert.
The non inclusion of speed data in a purchased product is a disappointing oversight, given that the Zumo uses the speed data to give an appropriate warning - it tests to see if you are over speed and if not only warns of location, otherwise it gives an appropriate speed warning as I received.
All what you noted is the reason why we provide easy POI management (add and edit) modules in our download zone.
Please let me know if you need any help to add your correct location and POI description.