I run 70 down the freeway no sway bar and soft progressive springs....the front is connected while on road.
Making quick disconnects for the rear as well for certain trails just not off camber ones.
Yes it does help flex with it off.....
My rear tire does not stuff into metal with it on, with it off it smashes it in there pretty good.
Swat bar is good for a lot of stuff but when we hit the rock piles its off.....front is disconnected on all trails.