Why another noise modifier?
I love the standard noise(turbulence) in X-Particles but its get very chaotic very quickly and I wanted some randomness with a little more predictability which is where this preset came from. It uses noise with a range so your particles will only stray away as far as you want them in any or all dimensions. The reason it works well is because its not a force pushing your particle constantly to oblivion, its just taking the particles original position and saying move it at most X amount away from its original position.
Is there a downside to this method?
Since the preset is reading the position of all particles on all frames and sending data back it can become slow with a large amount of particles. If that is the case then just test it on a small amount of particles and turn it on before render.
What does it look like?
-Tested on X-Particles 2.5 and 3.0