Hello, I'm trying to decide between either a V beam pulsed dye laser or a Q switched laser for my surgical scars. I am Mexican with olive toned skin. The scars are thankfully flat, but there is a lot of brown pigmentation. Which of these two lasers do you think would lighten the color of my scars? I'd like to avoid lightening creams as in the past these have caused lines of demarcation for me. I'm 2 years post op and have already tried Pico and CO2 lasers. Thank you