Sorry to hear about your bad experiences, gettig good results with a Hasselblad certainly is possible, but they also are as subject to to wear and tear as any other camera.
Checking the screen height should have been something the tech did in the repair, so far as I know there is not a user adjustment for this on a C/M. If the tech worked on the camera with the original screen, the Maxwell screen could be off a little, causing your woes. To evaluate the possiblity of the screen being off, you could photograph a ruller or tape measure extended away from the camera, shoot wide open and jot down where you focused and check the neg to see where the focus actually is.
I hate to suggest spending more money, though it may be your only choice, Hasselblad USA does have a service they call something like "check to spec", and they check the camera out to see that everything is within spec, for example the squareness of the body. It costs about $100.00, but doesn't include repair services. It would, however, tell you exactly what may be wrong or right with the camera.
Last edited by bdial; 10-29-2012 at 05:49 PM. Click to view previous post history.