Hi, I'm new to the whole world of Hookahs, I've just got a few questions relating to it. so, I bought my hookah, and the first time I used it, it was great, thick smoke, everything, but then the second time I used it I'm not sure what I did differently, but the smoke wasn't as thick, and it seemed like the draw was harder, although that part could be in my imagination, but for sure the smoke was not as consistantly thick as the first time. second, I was wondering if the wind screen is a necessary thing to use when I'm smoking outside? Third, How high should I pack the tobacco, should it be touching the screen, or slightly beneath it? lastly, I was wondering if you guys could suggest your favorite kinds of Shisha, I like fruity stuff, but am open to suggestion to pretty much anything. Thanks.