Had this demonstrated at the end of my FI course, after discussing it for ages. It was an an R22, but ought to be similar for any helicopter, I think. I tried bringing back the speed, and while theoretically it works, it's horrible - you end up in a high hover and hardly descending at all, just wobbling around all over the sky (a technical term!) and risking vortex ring. What I was shown is to close the throttle a bit, at the same time starting a turn; this increases the disc loading, thus raising the RPM so that it doesn't get too low. Then keep going in a gentle descending turn until you're near the ground, and then...I can't remember!!! I guess you'd roll the wings level just before you lose translational lift, then do a run-on landing. Should work, I think.
