Since I'm re-doing my sub box and doing it right instead of crappy this time, I need to know some ways of sealing around the subwoofer. Right now, even with the sub torqued now, there is a slight amount of air coming from the edge of the sub between two of the screws. I'm afraid it's going to get even worse after I carpet the box. Are there any good tricks for getting a nice, tight seal? I was thinking of making/buying a rubber gasket to sit under the sub. Any advice?