In the process of building my sonosub... Before I start cutting though.. I had a quick question.. Would there been any benefits in having the port on the top instead of the bottom?? I see that the SVS subs are ported on the top, and their driver on the bottom is mounted more towards the middle, instead of towards the side of the tube. Just wondering if one is better than the other. I can do it either way. I would imagine though, that it's easier to put it all on the bottom...just a thought... thanx..