Hello everyone i have been vegging my plants with 1 HLG 260w XL which they say is enough for veg but not for flower. So I purchased a second one if you know the 260 xl is the same as the 260 except for there is a full section in the middle where you could add a 3rd board if you wanted to. I liked the idea of them being spread out so they are not growing towards the middle of the tent. Which is why I got a second one I also got a 30w uva light bar from them as well. My main question is, when I add this second light, what should I set the potentiometer of the 2 - 260 xls at? Should I crank them both to 100% to start? And second question is HLG states that I should run the 30w uva bar for the entire 12 hour cycle. Anybody have any experience with using these uva bars? I guess more specifically how long should I keep it on for during the lights on period of my flowering cycle? Any advice is greatly appreciated!