TET - raise the lever to get the lift, the flapping and the conservation of angular momentum and you increase drag as well as lift so the blades slow down because the engine isn't driving them any more.
Lever up in auto = Nr down.
every one here talks about RRPM increase in the flare, so do I. the flare and sometimes a quick click on the collective will convert the ROD and airspeed into RRPM -and - slow the aircraft down in both directions.
Now, here we are sitting fat dumb and happy with a decaying nr, (admittedly with a higher drag configuration on the M/R than during flat pitch and descent mode) settling and awaiting the cushioning pull of the remaining collective. No arguments from me at all.
Each action, the flare and the quick click on the lever, has the reaction of coning the blades and thus moving their mass inwards, that is why they increase in RPM. the trick is to make sure that the static auto RRPM setting is right, not too high or that increase may be over the redline.
my shout or yours?