I am an Indian with skin tone is similar to Raj of BBT . I am concerned about hyperpigmentation for brown skin My ?s 1. With precautions (apply cream, reduce sun exposure) can I reduce the chance of hyperpigmentation? 2. The Dual with the frequency 1550/1927, can they be individually tuned (change the strength of LASER) to reduce the chances of hyperpigmentation? I have read that 1927 is for melasma and since Fraxel refine (1550) was no help, can it be toned down? Thx 4 Hlp