So what height, speed and rate of descent did you start this from?
Did you try it with left cyclic and right pedal (which would have given you more power available)?
(Wow, that happened quickly. Only just saw this).
Honestly this wasn't fully developed VRS. I was with a fairly inexperienced instructor, who'd just been shown this himself. To get anywhere close to the "real thing" I'd want to be with someone who has been there themselves, preferably several times.
We were at 1000 feet and let things develop for maybe one second before starting the recovery, so still very much incipient. We only did it with right cyclic / left pedal.
I'm sure it would be lots of fun to be a helicopter test pilot - but I'm not one!