Group Strength Training for Women - Mosman/Balmoral. PERFIT is your answer to prioritising strength workouts as part of your weekly exercise regime. Our outdoor group training community is key to remaining committed and inspired in your health and well-being goals. PERFIT is here to help you achieve the results you deserve, and put a smile on your face every time. PERFIT is owned and operated by Caroline, Master Personal Trainer, previous Registered Nurse and Mosman resident.