lol you're wheeling an XK dude... pricey & complicated is part of the beast. The addition of the ELSD's adds a bit, sure... but compared to the already "complicated and pricey QT-II XK", its indifferent especially considering the probability of failure. If the ELD's were blowing up every other trip, then yeah. But you're just as likely to blow apart your spider gears as a QDII owner is to burn up the clutch packs.

The carriers aren't a weak point so its really a non-issue IMO. And regardless, so the playing field will be even when you put an aftermarket selectable locker in the QT-II diff.... so whats the difference then