Wes Prouty explained this in an issue of Rotortales many many years ago......VRS requires 3 things, relatively high rate of decent ( most modern helicopters about 500') partial power ( can't be in VRS in an autorotation) and low airspeed ( less than translation). Only 2 ways out, moving out of the "bubble" or full down collective and entering autorotation (usually not an option). What you do with the flight controls to get you out of the bubble will depend on many factors, but in my experience lowering the collective as much as possible and forward cyclic is the best muscle memory method.
SWP is simply not enough power ( lift) available for the flight condition, hot/ high for example.