Originally Posted by Nullifidian
Come on man, you gotta leave the ego at the door. The heavier the weight you work with the more likely you are to injure yourself. The way I always do my exercises is to try to make it as difficult as possible so I can get more results out of less weight. That's why I love exercises like incline curls and dumbell kickbacks. Incline curls are way tougher than standing or even preacher curls, and kickbacks are tougher than overhead extensions or skullcrushers. When you work with lighter weights, you work with stuff your joints and connective tissue are better able to tolerate.
Sure heavy work is ok once in a while, but few people are tough enough to be able to truly go heavy with every workout for any more than a week or two.
Another tip to make DB press tougher btw: don't use a full range of motion, just use the bottom range. As soon as you can feel tension being shifted to the triceps, start the negative.