So the coupler failures are from well used couplers that were worn out before installing the Andersen. Not sure if thats a fair slam on the Andersen. Yes the worn out couplers probably would've been fine on a conventional WD setup, but someone with a new TT shouldn't have a problem. IMO. And to what degree were those couplers worn? I read the Airstream link about the coupler problem and IIRC that guys coupler needed replaced before he installed the Andersen, but didn't know it till he installed the Andersen. I guess the question is, will the Andersen cause premature coupler wear?