to be honest with you....I dont know EXACTLY.....by that i mean:my plant at this stage is all bunched in and it seems like i would probably have more bud sites if the light were getting to more fan leaves....when its bunched up like it is....really only the top gets the best light....if it had more space...perhaps the fan leaves and nodes could expand out allowing lower nodes to get more light....they say that the lower part of the plant has the most potential for bud site growth...though ive not seen it in mine.....dont get me wrong though...in many ways I think that a bushy plant is a blessing esp for a first time grower....really massive and probably produces more overall bud than one of those skinnier plants you see on here that really only seem to grow bud out from the main stem...however, it still seems like if it had more room to expand and the light could get to the lower leaves, it would produce even more bud.....since i dont know any further dangers of tight spaces, if i were you I would post a ques on that alone and maybe some more experienced growers can enlighten you and I both on possible problems....