Jayteeto
You'd know better than me, being a QFI, but the retreating blade stall sound is a dagga dagga dagga when you are low, fast and going round a corner a bit sharp. You fix it by dropping a bit of collective, or you end up rolling nose down heading in the direction of travel of the blade. At least thats what I was told 30 odd years ago, and as I've said I'm always prepared to be wrong.
Nr Droop, as you haven't got anticipators on the Puma- very likely, but I have never heard it, so I wouldnt know, Ive always flown Gnome.