So after getting this box built and everything adjusted I have noticed one sub moving more then the other. I have checked the output voltage of each amp and it is within 1 volt. I checked polarity of the sub that seems not too move as much and its correctly wired. I even switched amps on the subs to make sure it was not an amp issue. After pulling my hair out I took it to a shop today and they seem to think since the port has no divider that is the problem. If anyone has any tips or experience with something like this I am all ears