My rear is out completely and she still has decent road manners... Haven't had a chance to do disco's for the front (debating removable pins or the jks style)
Funny thing is if you go read over in the wrangler forums you'll have one or two guys going "omfg don't remove any of your sway bars!!!!!!!! Blahblah off camber this n that! Guys in koth are running with swaybar a etc etc." IMO... I don't see how disconnecting at least the front would hurt... And if its trail only I say go all the way... It's not like you're gonna be on the road, right?
It sucks to drive onthestreet without a front swaybar, and IMO it's actually dangerous. Been there, done that, don't want to do it again!
Definitely better offroad without it though. Like was said before, a little more body roll, but if you're going slow it's not bad. The extra articulation more than makes up for it. The sway doesn't damp any up and down motion (like shocks do), so it won't make the ride any bouncier.
I'd leave the rear bar in, it doesn't really hinder flex that much, but I feel it provides some lateral stability on sidehills. I don't have a rear sway, and with the front disco'd as well I've been on some sidehills where I've felt a LOT of roll to the downhill side. The rear bar helps to keep the body a little more horizontal in those situations. I actually think the rear sway helps more OFF road than on, as I don't notice the lack of it when I'm on the street.
there is a reason a lot of guys run the Antirock Sway bars now front and rear; because having sway bars is an essential part of your suspension. those particular bars give you the stability you want while allowing for flex.
that said, keep the rear at all times. front you can disco for wheeling, on the street hook it back up; you don't even need fancy JKS discos; just unbolt it. thats all i do. takes minutes.
when you're on a sidehill with both sway bars disconnected the 'pucker' factor increases exponentially.
I run discos up front and nothing in the rear, the rear sway bar was removed because the mounts were damaged and I just never got new mounts, dont even know where the thing is now, probably somewhere in the basement or something.