Worked for me out of the box and 2 minutes of setup. Granted, the
manual could use some more clarity, but, hey - they're both new
products and they all suffer from teething pains. Let's not forget:
1. this is a small customer base (compared to other industries); and
2. it would be difficult to test and publish all possible combinations
of GPS sources.

So far, I am impressed with both products and I can't wait to fly with
them!

Cheers,

Derek