Many people are quick to say that certain exercises, like the behind-the-neck press, will cause injuries. Of course, anything can cause injuries, especially if you're doing anything worthwhile or rewarding. The trick is to make your body physically prepared to cope with the demands of training.
With the behind-the-neck overhead press, the risk simply comes down to your posture. Bad posture? It's not the best choice for you yet.
If this article doesn't help you diagnose and cure the reason you're currently in weight-lifting limbo, Mike will give you your money back! It's GUARANTEED! Of course, the article's free, but still....
How you could stretch out a set by making use of the fact that you can give yourself a biomechanical advantage simply by changing your foot or hand position.