Thank you, Wayne for such an in depth response. It looks like tending toward th stock 4Pi and purchasing the kit direct through you. With the kit, do the printed plans come with cutsheet dimensions for each wood panel?
Also, I know in the back of my mind I'll always be wondering what if. What if I had the upgraded JBL and B&C and how much different it would sound. Can you give an opinion on the sound differences between the upgraded and stock 4Pi?
Lastly I have 2 huge front loaded 15" horns via lilmike of AVS. This is actually why I now need to upgrade my mains. The bass is so dynamic an powerful that my mains can't keep up. The awesome fellas at AVS recommended you and your Pi designs. Again, thanks for your helP and I look forward to your opinions.