Am having trouble remembering/visualizing exactly how they worked so another member could relate their real life experiances, but you might first check the curve at the elbow of the hinges against the other side with a cardboard template or against other known good hinges. It wouldn't be unusual to have sprung hinges. Also you might try loosening all the bolts at the pockets, top & bottom, and inside, and see if there is in & out adjusting movement that way. It would help to see one; There are ways to bend/recurve or use shims to get more adjustment, but I,d wait to hear from another inliner that owns one first.
