I had my used set of irons adjusted at my local muni for 4$ a club. I put tape on the sole of each club and hit a foam ball off of a piece of plywood. The mark on the tape will tell you if the club is upright, ok, or flat for you. You can leave the tape on the sole and the fitter should be able to tell you how much each iron needs to be adjusted based on where the Marks are. I asked him to check to ensure that the lofts were per company specs and that the lies needed to be 2 deg flat. I hope I understood your question correctly.