I am a profesonal groomer doing about 5-8 dogs a day, depending on the season. I am looking to start my own shop and need a back-up as I will have no coworkers to rely on if my one pair cop-out on me. I do like my andis super 2 speeds as they are lighter than the regular agc 1 or 2 speeds. Its amazing what i minor differance in weight will do. my arm does not get fatigued anymore. My clipper guy just tries to get me to try different kinds, and well hes not a groomer so it's hard to take clipper advice from him when hes not the one using them all day every day.