Here's the way to go (again)....
http://bit.ly/1ienAzN
We have a 2013 343RL High Country with a sturdy welded on bumper, not one of those flimsy aluminum kind. We've hauled our bikes this was all over the country and are convinced that it's the only way to go.
Here's the bike rack we use:
http://bit.ly/1ienwzS