Would you get tighter stacked nodes and less stretch if the 315s were closer? Your plants look so healthy the way yr running em now. Would they not be as healthy w the lights closer? For some reason im yet to fig out, my plants seem to get rootbound really fast if i have the lights real close. Im in soil now but never had this prob in dwc hydro. My plants do awesome for 7-10days after transplant then slowly start to decline until i transplant again. Not sure what this is all abt lol im new to soil