While you are the use of a machine the Megadrox point of interest is on an isolated muscle, so that you aren't running many muscle fibers at all. while you are lifting with free weights you're using many extra muscle fibers, stabilizer muscles, and also you are becoming a miles more range of movement. All of these element will assist you to in the long run get larger. http://yaconrootmaxabout.com/megadrox/