Mine works ok for the sidescreen bag.
The only issue was I had to use stainless washers to adjust it towards the Left on the rear mounts to get the t-bar hole in-line with the threaded base. That sorted the L-R alignment. I use a padded insert
Below the spare wheel to get the vertical alignment correct. The spare slips down under its own weight as it rests on the smooth plastic liner beneath it. I might try non-slip tape as an alternative.