French presses, especially with an ez bar, bind your joins and eventually lead to injury (tendinitis). If you think it through, dumbbells (for non dumb bell folks) are clearly a much better choice for the obvious reasons I stated above, and that fitness "experts" state every day.
EZ bar is one of those pieces that should be removed from the weight room.
While barbells are o.k. for squats, and deadlifts, for almost anything else, you want to involved the stabilizers / assisters, through a full range of motion, which is usually not possible using a bar, of any kind, because of your hand position.
Having a full range of motion is essential to both good development ( a fully extended / stretched muscle ends up about 30% larger ) and injury prevention.
Almost no one in the know, these days, advises extensive use of barbells, Skullcrushers, or French presses, because of the way they limit your motion and bind your hands, and remove your stablizers. Dumbbells are MUCH better for effective training, injury prevention, stretching, and a full range of motion. As I said, it's just a common sense thing.
Over the years, I've seen guy after guy with anterior shoulder impingement from doing shoulder presses to the front (dumb, because it causes your shoulder to roll forward and "impinge"), and there's no reason to over develop the anterior side of your shoulders, and I've seen countless folks injured with French presses and EZ Curls. It's bad advice to recommend doing them, and most degreed "experts" in the field will tell you so. If you do shoulder presses with a barbell to the front, you're asking for shoulder problems unless you do extensive posterior deltoid work, which most folks don't, so it's best not to train like a moron.
It's like smoking: "I used to smoke 50 packs of cigarettes a day, until I lost my right lung, when I cut my smokin' in half."
Don't be a fool.