Just wanted to post a quick update on this.
As some of you may have noticed, I upgraded the garage woofers with new GPA 416s. I also modified the crossovers to accommodate the differences in the woofers electrical behavior. After a few months of break-in, I have to say that the GPA 416s are phenomenal. Their sound is so full, so musical (its that lovely mid-bass sound), and clean. I may try to get a quick video with my HD camera and see if it can come close to conveying the awesomeness of the sound I enjoy in my garage...

pe8