Being you got the JKS unit, it will be different all the time. All depends on when you lock it down.
Be sure that it is super tight. Some time it will slip a little and make it feel strange. I does it's job, but never as well as the fixed factory one. Think of it this way, when you have it loose, the axles say moves to the right, and you get off the trail and lock it down, it is never in the same spot. Even though Leaf spring vehicles don't allow for much side to side movement, there still is plenty. I have the same bar in mine, and the only reason I got it at first was because I used to tow that trailer to the wheeling trips and with no track, or sway, it would give me a little tension. However now I never use the sway, and only lock down the track when I tow, or drive out to Paragon.
Either way you look at it, your steering wheel will never be in the same spot every time. All depends on which way the springs were when you locked it down, or if the tele slipped any. When I first put mine years ago, I took it to a shop for an alignment,(waist) and I had it all tightened down. They gave it back saying they could not get my steering wheel straight, every time they bounced it or took it for a spin, it would come back different...
As for the more squirly feel, I often get that when the springs move under the vehicle. Depending on how worn your springs are, older ones will do this more. Wrap ones will do it even less, but no matter what, when you go around a corner, the springs will move to 1 side just a bit, so that added to the turning of the wheel makes it feel darty.
I believe JKS say you have to stick with the Stock pitman, also, I found that when I ran the old school sway bar disco, round pita bar with 2 pins, that did the same as my track bar, did not allow for much side to side movement, but when I ran the Tera type, even though it was 100% better to disco, it did nothing for side to side movement, just did the 1 job of sway control. (which is not much sway on a 4"sprung leaf spring)
For me, I just got to lazy and now run neither unless it falls into the upper issues. You just get used to driving it and it becomes natural in a few weeks.
*No track bar = 31% more suspension travel than solid trackbar for improved off-road performance :rotflmao: