I'm a Hispanic woman looking to get some sunspots and freckles removed. It was suggested that I try pico lasers and was wondering which one is better, PicoSure or PicoWay, for my skin type (Fitzpatrick IV)? From what I understand the PicoSure has one wavelength and the PicoWay has 3. Would the availability of additional wavelengths matter when dealing with freckles and sunspots and not tattoo removal?