This thread has been raised before. Whether or not it can be done depends on the ASI errors in autorotation on that particular type. Some types do actually underread in auto, leading to the notion that a safe EOL can be performed from aspparently very low airspeed. when in fact you are effectively doing a Constant Attitude technique. Unfortunately on a significant number of types (including the R22), the ASI badly overreads in auto and safe EOL,s need at least 40 kt for a constant attitude touchdown. To illustrate the trap; the Bell 47 G2's were quite benign at low IAS's whereas the G4 model with a different pitot/static set up were liable to skids round the ears if you attempted a constant attitude from 30 kt or less. Worse, the actual extent of the error depends on whether you come at the final speed from above it or below it.
The only safe advice is to limit autos to vertical relative to the ground and lower the nose to recover to normal auto by 600' AGL. this will work for all types. Yes you can go backwards over the ground in strong winds; the problem is that you will not know if you have inadvertently got backwards airspeed on. If so, the recovery to forwards auto can take a looooong time and the brown bits start to look very close.