I've got it.....how about the loadmaster has to go with you on every flight. He just might take extra care in loading.
We had a test hop in a DC-6 after an aileron change and the Captain said he wouldn't go unless the mechanic who signed off the work went along with us [ I was a lowly FE at the time ]. Well, after much discussion, the mechanic agreed to go. You should've seen the sweat pour off his face as the Captain put the plane through a bunch of maneuvers. The Co-Pilot and I were a little nervous as well !!