i'm getting ready to redo the box. i'm gonna have a huge port for when i go to comps and i wanted to make some kinda plug for it for daily. i think i read somewhere that all you have to do is have some kinda "plate" to cover some of the port, making the cross sectional area smaller, lowering tuning. but i was thinking doesn't this reduced size have to stay consistant through-out the entire length of the port? if the port just came up and hit this it would cause some turbulance and possibly some port noise, correct?