Thanks Danny, not what I wanted to hear but now I can stop thinking about it. My speakers are taller than your original design, not as tall as the Super 7 but somewhere in between. I can almost fit the Super 7 section into mine but I'm about 2" short in height.
I'm pretty sure I have the jupiter cap upgrade in mine already. I really am happy with the speakers the way they are but you know how this hobby is. I'm just trying to get all I can out of my system and I really don't want to buy another pair of speakers, not at this time anyway.
Thanks for the input Danny, much appreciated.