I have a swing hitch and CustomRV mounted a Pro Eagle WDH to it when I bought it. I have had no problems with interference.
I am unsure as to the exact model number but it looks very similar to this one on amazon:
http://www.amazon.com/Pro-Eagle-1000.../dp/B000GGJQX0
I have not had issues with sway despite a lack of a sway control device.