Fijdor:
I did a 3 year exchange with the RCAF. During that time (helicopters) they trained me to be a waterbird instructor and also gave me my mountain flying instructors badge courtesy of the Rockies. Lovely people, gorgeous country.
With reference to your Transport Canada piece:
https://en.wikipedia.org/wiki/Vortex_ring_state
In it you will see that the FAA see it the same as SWP whereas Transport Canada don't. (thank god there appears to be common sense somewhere in N America).
When it comes to VRS Fijdor - believe me you have not knowingly entered fully developed VRS, or you'd probably not be here today / bent your aircraft.
You have probably entered Incipient VRS - which is "relatively" common amongst chopper pilots who are in a slow and descending / downwind / updraft scenario. But you have trained yourself to identify the conditions - quickly. Therefore you are out of the condition before you can say Justin Trudeau!
Fully developed VRS:
VERY high RoD. (thousands of feet per minute).
cyclic / collective/yaw - erratic.
Vibration.
{Just in case you weren't aware}.
