I read somewhere that the usb pwr adapter does not have the amp capacity to run & charge the batteries too. Then again, the 12v 4 pin cable only powers the Cx.
Plus there is the problem of being able to use rechargeable or non-rechargeable batteries.
I did not notice much of an improvement when I upgraded from V7 to V8 as far as new streets in my area at least.
Probably hit or miss depending where you live, travel etc.
Walked into the kitchen one day & there was an adult dobsonfly on the outside of the window screen.
I think I jumped back about 10 feet, man they are big & ugly.
CS has smaller segments. Last ver was 7 I believe. If your CN is ver 8, it will have more up to date info.
Once you load any new CN maps, the CS maps will go bye bye.
Guess I missed something here. I recently marked a 65 mile route in Mapsource using some main & back roads I wanted to travel. My gps followed this route, no problem.