OK so after a day of tinkering, we ended up doing a few things. One, we changed the sub from a Memphis flat to a Helix E10W flat woofer. It was a better one for my particular application. We removed the Hybrid 6's from the door and came to the conclusion that the 8 inchers were just too big. They would require glassing and to come out from the door panel. We thought that it would be too close to my leg. It was doable, but a lot of work and maybe even too far out. We upgraded the tweeters to Hybrid Audio Ring Radiators. They are AMAZING. We have them on axis in the A pillars and used a Hertz Coaxial in the door. We are able to get a LOT more midrange and vocals without having to blast the ring radiators. The sub hits really tight...just missing some deep, deep bass. That's not because of the sub, but because of the limited space in the stock enclosure.
I am thinking of opening the back of the sub box up by cutting out the rear body panel. Does anyone know how much more room I can get from doing that? If I can get enough room, we can fiberglass in an enclosure and use a larger 10 inch sub, or maybe even a 12.
I will have for sale the Hybrid L6 midbass speakers and Memphis flat 10" subwoofer. This is not because they are bad...they are both kick ass, but not perfect for my particular application.