How's doe's it handle now compared to this Sammy hybrid set up you had ?
Feel more stable with the extra track width ?
Gotta love those e-lockers yeah ? 
After cruizing around for a couple days now. I'd say it drives a TON better than before.
I can't say exactly what helped it handle better than before except possibly all of the changes we made;
We installed new poly bushings all the way around (shackle hangers and springs). This should help with the deflection problem we were having.
We have entirely new spring packs, front and rear. (with mil. wraps) Additional main leaf for additional support and anti-spring wrap.
We have front AND rear sway bars. (probably the biggest contributor) The rear sway bar is VERY noticable. Helps cornering lots.
We now have a wider stance. (more available leverage on springs) Should help with CG and flexability.
I'd say they all helped. I expect our trail experience to be equally improved as our springs are better matched and balanced front and rear. Our stance is wider.
I feel more comfortable with the larger u-joints, and higher clearance angles on the drivelines along with the stronger axles, not to forget the addition of a front locker.

I don't think we'll have a chance to really test it out until we get down there, so Moab will be another proving ground for the work we've done. *cross fingers*
~Nate