Vuichard technique for settling with power?

[FICH]

I fully agree with you, that the target number one is to avoid the vrs.
A student has to learn the causes and the initial signs before **** gets real.
But he has also to learn to handle the real ****...

Concerning IVRS or VRS, can you tell me according your judgement where the transition between these two things is?

For example, i fly the helicopter into vrs. Random yaw, vibrations etc. I don't do anything. Sinkrate begins to increase. I don't do anything. At 1000ft/min, i apply power. Sinkrate increases more. Is that IVRS or full developed VRS?
Only that we speak about the same...