Sometimes its hard to correct something just by practicing it, and getting coached. Many pitchers are referred to me by their coaches because they 'can't get into ________ position.' As a baseball physical therapist, I examine the total body and see why this athlete can't move a certain way..where are they weak, where are they tight, etc. For example, you need a longer stride, but just trying to stride longer won't work. Maybe you have tightness in your groin, or more than likely, you have significant weakness in your hips which don't allow you to explode from the rubber. Whatever it may be, you should get a total body exam to find where your deficits are, and get on a program to correct it. This will help get your timing right, and ultimately lead to higher velocities and less risk of injury. Where in NJ are you located, @NJPitcher4 ?