As an Andersen owner who has towed an average of 3K miles per year for 4 seasons, I took note the two happy Andersen owners in this thread have 3/4 ton trucks.
I have the Expedition EL in my signature and my TT has a 26 ft box, roughly 6,500 lbs loaded (weighed at 6K the first year, assuming I've added too many toys).
It is light and easy to use, but I also don't feel I'm getting enough weight transfer. It got less fussy while towing after I used a clamp to take all slack out of the receiver to hitch junction. And although it's been some time, we've had a few instances of the Ford anti-sway jumping in.
If I make a change, I'll likely go with the Blue Ox Sway Pro if nothing changes in our rig. All that said, I see the OP has a different solution. My post is just to help anyone who's searching.