During this process it is still important to have a certain lack of concern for where the ball is going. As you allow one element of a stroke to change, others will be affected. As you increase your wrist snap, you will alter your rhythm and timing. Initially this may result in inconsistency, but if you continue with the process, simply allowing the serve to serve itself while you remain attentive and patient, the other elements of the serve will make the needed adjustments.