Not using magnification is a common theme when multi-grafts are placed in the wrong area. Using decent loupes takes time for techs to get use to them. Even some of these magnifiers that people wear just aren’t good enough. If the grafts are sorted without magnification it’s easy to mix them up. I’ve looked at extracted grafts with the naked eye, then with the cheap magnifying glasses. Quite a few grafts that I thought were singles turned out to be doubles. Trebles are easier to see and you have trebles. Again, it’s the doctors fault for not checking the quality of the work.