I'm an African American woman starting laser hair removal soon for my chin and neck area. They will use a Soprano laser. I was advised by the office to shave 3 to 4 days before the first treatment. I've read that you're supposed to shave either the day before or the day of so I'm confused.. They told me that the reason they don't want me to shave before treatment is so they can see the stubble to know exactly where the hairs are they need to treat. Can someone please verify if they are correct?