While Poliquin advocates will share behind the neck presses are a sign of good health, the other side will share that they feel that lifting overhead is a bad idea with overhead athletes. While each shoulder is anatomically unique, I do find it interesting some American coaches advocate unstable water filled keg walking lunges in strongman medleys and promoting wall-slides, yet a dumbbell shoulder press is evil. You can do a turkish get up with an overhead weight, but presses are taboo. Watching some Javelin athletes do 3,000 plus jerks in a career with no history of shoulder problems makes me think that we may not know exactly what is going on. Does this mean you need to do behind the neck presses right away? Nothing in absolute is necessary, but we need to investigate overhead pressing a little more. Exact mechanism must be very explained before we eliminate options.