Anti-torque pedals and SAS's

[nickel]

Hi,

I am not a pilot but rather an helicopter enthuisast interested in RC flying and computer simulations of helicopter.

I'd like to know about the contribution of stability augmentation systems in modern helicopters. In MS flight sim 2004 the Bell helicopter was pretty hard to fly because of the need of constant anti-torque correction. In the new version of the flight sim its behaviour is completely different. When I change the collective the helicopter turns just a little but then stops turning without my pedal input as if the control system does the job for me 100%.

I've read many times in internet that the pilot has to play with the pedals any time collective is changed (and this is my experience with RC helicopters even though they have a simple control system that helps).

So the question is how is the real thing? I'd actually think that modern control systems can almost perfectly handle compensating the torque reaction. Is this the case?

Thanks in advance for the answers