I'm starting to realize that at best, the DIN system is a ball park guess based on incomplete information and outdated research. I wonder how accurate the settings are that we put our faith in. All that really matters is that the force required to release the binding is less than the force required to break the bone. There are multiple variables that go into this calculation, but we just use a few basic ones.
This may seem a little random, but whether or not a person is taking steroids (like prednisone for asthma), has a huge impact on bone strength/density. Potentially more than all the other factors combined. I have never seen the question "Do you have any medical or hereditary conditions that may affect your bone strength?" appear in any DIN calculations. Perhaps it's fair to say that this responsibility should fall on the customer and not the technician, but if you are going to train and certify people in the application of safety equipment, it seems reasonable to educate them in all the variables.
When you see information presented on a website, manufacturer's manual or printed chart, there is the tendency to believe that the information is accurate, based in validated research and can be trusted. Can DIN be trusted ? Do we really have enough information about a given individual, to decide if their DIN should be 6.0, 6.5 or 7.0 ?
Not meaning to be critical, just thinking out loud.
Ye know too much. You are on the verge of understanding why the average ski shop employee earnes just slightly above minimum wage.