This is so weird practice, but I’m doing that every time. Not sure how the leaves even on the bottom can “not get enough light” in a grow tent with a very high light reflection until they become oriented almost vertically pointing to the floor which doesn’t mean overwatering but searching for more light. The benefits of doing this is creating a better posture for further transition into flowering. It helps avoid popcorn buds and save space for better air circulation, probably reducing overall yield in exchange for better quality buds.