I can certainly understand and respect feeling comfortable installing a WD hitch, but you really should read the manual watch some videos and develop a comfort level with it. WD hitches are NOT a one time installation and forget about item. They need to be adjusted and tweaked over time, especially as your trailer gains weight.
Secondly, I always disengage the WD before backing into a site. On an Equal-I-Zer the bars are designed to keep the TT straight in line behind the TT. That is the active portion of the sway control it includes. So when backing and swinging into a site you are putting extreme, and unnecessary, force on the hitch. This is perfect for going down the road to keep the trailer in check, but not helpful when backing into a site.
My opinion is you have a great hitch. Maybe need new brackets, but that's not a big deal. Also drop the bars before backing into a site, this will reduce force and make backing considerably easier.
2007 Chevy Duramax LMM/Allison
2012 Jay Flight 29QBH
2012 Jay Flight 26BH (Sold)