I still think 50 mins is asking for trouble. I just flew in from IAD to CLT, and the plane was delayed 25 mins due to storms. Several ppl on the flight missed their connections, because they had booked too close. If you like to live dangerously, go for it...I don't like to spend extra time in airports, so I like to allow plenty of time to get to the gate, rather than have to lay over any more time.
In any event, good luck. And, welcome to Charlotte!!