FGear Vehicle Physics (v1.4)

I had some bad behaviour on turning+braking without accel that makes the non gripping wheels from rear axel block.

Got fixed setting ABS to 60(before 50), which i can understand due ABS avoids locking wheels on brake.

But other thing, no idea why, was setting 20 at: Front Anti-Roll Power.

Checked the FGearVehicle to know what it really does and seems it gets suspension compress ratio, then sets a springCoeff+Modification.

So, what it exactly does that SpringCoeff? and Why it helps to avoid rear wheels lock on braking ¿? Any idea? Because i want if possible let ABS to 50max and without antirollbars, but cant understand why just that one blocks on cornering+braking.