This segment of the discussion was all about how relocation of springs impacts handling. My answer is its a minor change. You average mopar leaf spring is around 140-160# spring rate, more if you have SS springs. Moving it inboard removes 10# or 30# of rate, depending on which kit you use. While we both agree that softens it slightly, we disagree on the magnitude of that change and now you are now including roll resistance into that discussion. Okay, fine. Part of the roll resistance of a mopar leaf spring is imparted by its 2.5" width. This is not directly related to its spring rate and is more difficult to quantify, but, moving the leaf inboard does not change the width of the leaf pack, nor this resistance to leaf twist, or body roll. If you are talking about post 71 B Bodies, E bodies, or F bodies, the mounting angles of the leaf also are part of the roll resistance formula. So we are still left with a relatively minor change in the applied spring rate. Changing springs is pressure on the tires, similar to adding or subtracting gas to the tank. A 30# change in spring rate is like adding or subtracting half a tank of gas. Simple spring rate change. Can you feel it? A few can, most cannot.

Regarding anti-sway bars; Stock bars do not have adjustable mounting points. They also are no bigger around than your small finger. Don't mix those in with adjustable sway bars nearing or exceeding 1" in diameter or of tubular construction. The aftermarket bars that are much larger or offer adjustable points tend to have rates well over 220#. If you know much at all about roll resistance, than it goes without saying that small changes in sway bars have a much bigger impact that similar small changes in spring rate. The same applies to torsion bar diameter changes vs coil springs suspensions. For example; a .125" change in sway bar diameter could have the same impact as a 150# change in spring rate when it comes to roll resistance. So the incremental changes in sway bar mounting locations have a much bigger impact on the feel of roll resistance than a similar change in spring rate. In other words, each one of those holes in the adjustable bar is like adding or subtracting another whole tank of gas to the car whereas just changing spring rates is like changing half a tank of gas. Which do you think is more noticeable?

To summarize;
1 - moving leafs inboard creates changes to applied wheel rates
2 - leaf width and mounting angles are factors in roll resistance
3 - Anti-sway bar diameters and connecting points may have a bigger impact on handling than spring rates