Wow, those tweets are perfect. Adjustable and everything! That's why I originally liked the Vifa Neos with their wedge mount, but they are just too much $$$. I am assuming by bigger than 6x8, I am assuming you mean that the factory hole is roughly 6x8, and if I stick to the same mounting points, the plate can accommodate a bigger speaker, as long as the magnet fits through the factory hole. If that's the case, then I might just go for some larger (7"ish) drivers, especially since the pyramid tweets, it appears, can be mounted on the very edge of the plate. Let me know if this is what you meant by "bigger than 6x8".
