A load cell joystick would have:
Absolutely no center slop. The edge of input would be right where you set it with dead band.
No potentiometers to go bad, basically no moving parts. Even Hall effect sensors can get "magnetized over time.
The harder you push, the more control input you get.
Nothing between you and the input. No center spring, no gimbals, nothing, just your hand and the stick.
A load cell joystick would actually start bringing aircraft trim in a simulation closer to real life.
If you don't trim, you'll have to maintain a certain amount of stick pressure to keep the Aircraft straight and level.
Krusty a load cell is basically a scale. Miniaturized, capable of being mounted in any orientation. Two of them would be mounted on a joystick, one for pitch, the other for roll each capable of positive and negative values. Stick would likely have very little if any movement. It doesn't need movement to work. No more than a truck scale does. It just needs a "load" to measure. You could make such a stick on a thin shaft so there is a certain amount of "flex". If you wanted movement.