Methods and systems for improving nerve stimulation are disclosed which relate to shaping characteristics of the stimulation field such as by using different geometries and locations of stimulation. In embodiments, systems and methods are provided to improve selective modulation of specific targeted neural substrate, while minimizing the activation of adjacent non-targeted nervous tissue. While aspects of the disclosed technologies can be applied to any part of the central and peripheral nervous systems for treatment various disorders and providing symptom relief to provide for therapy related to pelvic floor disorders such as overactive bladder