The field delivered by the EMsculpt is typically centered on the umbilicus and is delivered in an upside down bowl/dome confirmation. When appropriately placed this delivers the effective pulse to the target muscle group. However, there are considerations of anatomy for larger patients where 2 paddles will create a more effective field with overlapping domes.That beings aid, for the vast majority of patients a single paddle is adequate. Patients will be able to sense the contractions during treatment from the stimulation and often times offer feedback as to whether it is adequate.As always, discuss your concerns with a board certified plastic surgeon (ABPS).Donovan Rosas MD Board Certified by the American Board of Plastic Surgery Member: American Society for Aesthetic Plastic Surgery, American Society of Plastic Surgeons RealSelf Top 100 RealSelf Hall of Fame