1st Grow Mini Op/Kind Soil

Been a bit busy not doing “important things” I am a bit of a nerd and the new WoW Expansion came out and the DotA 2 International was on so i didnt post for a while but gonna try to get back to sunday updates! Plants were needing to be watered and just coming from sleep so some leaves droopy, also developed minor powdery mildew but it doesn’t seem to be spreading. 2 weeks into flowering and plants have stretched over a foot each! The Skywalker and Fire OG are looking marvelous! i have small risers about 3inches each for the 2 smaller plants? do you recommend making the top canopy as close as possible or will a few inches (~6 inches) be just fine?