<p>I really appreciate everyone helping out. I emptied a roll and then inspected as best I could with my limited Hasselblad knowledge the film insert. I did this before I saw your messages, Ellis and Edward, so have not yet checked off the items that you mention. <br /> The rollers seemed flat and even, the film path/bed area was consistently even and springy (to my eye at least). There was, however, a weird line that was only visible at certain angles. It matches the area of my negatives that are being distorted, but it didn't feel raised or uneven with the rest of the film path. Attached are a few images of the line, made to the best of my ability. <br /> I loaded another roll very deliberately, paying close attention to every detail to confirm that I absolutely got everything correct. I'll shoot it in the morning during a Chinese New Year celebration and then check for matching serial numbers and deeply inspect the rollers. Otherwise, I'm in contact with the seller (a Japanese camera store) and have asked if they have another A12 back they can send me as it really seems to be the source of the issue. <br /> Thanks again.<br /> <img src="http://i66.tinypic.com/dotgfl.jpg" alt="" /><br /> <img src="http://i64.tinypic.com/zjbcyf.jpg" alt="" /><br /> <img src="http://i66.tinypic.com/fc7tl.jpg" alt="" /></p>