Well, dang Tyson. You left out the best part: How does it sound with the new crossovers?
I'd actually typed up a long answer to this question a week ago but it got lost when I got banned from AC. Now that my ban from AC has been lifted, I can finally answer this question! And it's probably for the best as it gave me an extra week for the changes to fully cook and for me to acclimate to the changes.
Here's what I'd say, overall. The speakers were already world class before I made any changes. Even bone-stock, they had very few weaknesses. And the weaknesses they had were all rather minor. So any changes I've made have been built upon that very solid foundation that Clayton created in the first place.
Having said that, I'd also note that the bass and lower mids didn't change much, before and after. It was amazing before the upgrades and is about the same level now. Upper mids are better now, as is the mids/highs integration. They were good before but phenomenal now. Ah, there is one area that DID improve across the board - detail and resolution.
Was it worth the time/money/effort? For me, absolutely. Even though in absolute terms the speakers are only moderately better than before, when you take such a great speaker and elevate it, even a little bit, the results are stunning. As for my own level of satisfaction, it took these speakers from the level of "I'm happy with them" to "I'll probably own these speakers for life".
If I could only keep 1 set of speakers, it'd still be the Super 7's in my downstairs system, but the last round of changes to the X3's closed that gap, a LOT. If my Super 7's got destroyed in a flood or something, I'd actually be able to live with the X3's in that system now.
And again, kudos to Clayton for making such a great speaker and for not charging $30k for them. Because the stock X3's spank most $30k speakers I've heard.