My 2553 has been inspected by Sagon and Lippert has looked at the picture below. Sagon told me the slight bow (see picture below) is normal and that the c channel across the front does not normally take that much stress in pulling the trailer and that most of the strength comes from the 4 inch c channel extending from the coupler to the i beams down the side of the trailer.
Both Sagon and Lippert said I could re-enforce the the front c channel, but felt it was not really necessary in my case. As one would suspect, the frame is out of warranty and I cannot claim it on my extended warranty because 'it has not failed' yet.
I will agree that at this point that there are no other indications that I have a problem. My battery sits fine, no bowing in any other components, no cracked welds.
I am curious if anyone else has the same very slight bowing that I see on my trailer.
At this point, I am going to use the string method to docment the amount of bow in my front c channel. At the first sign of any change in the amount of bow, I will pursue again.
(I also had the Dometic recall work performed!)