Still, I think its wise that when trying a new strain it is better to stay on safe side and not veg too much until one gets to know the strain. Especially in tents where overgrown plants can become a serious problem. Is your buddy's plant stretching more or less the same? Also, if you dont mind me asking, if you were to seal the tent with the lights on how quickly do they heat the air inside or how quickly do you estimate air inside would reach 100F (ballpark figure)? Im trying to get a sense of heat output by these lamps.