If the hatch opens wide enough where you can just drop the swing bar in and close the hatch, then you have a newer version, if you need to angle the swing bar in and close everything up at the same time and get the geometry of everything just right, you have a first issue.
You should be able to see the scalloping of the knurled pins if you look at the shoulder hinge, if it looks smooth all the way around and you don't see any signs of stress, you should be in the clear.