Alchef - your original question revisited an old chestnut that has been debated at length in many crewrooms and several tiomes on pprune in different forums.
Hopefully, Nick has put to bed once and for all the myth of needing more power in a constant AoB /IAS turn as you go downwind.
The potential pitfalls of turning downwind and maintaining constant groundspeed have been extensively covered and this is the area that catches out the unwary helicopter pilot, especially in the mountains when visual refernces can already be confusing due to the terrain.
I have taught lots of mountain flying and although I took flak for my suggestion about pushing then pulling - it works and has helped lots of students of all levels to improve their mountain techniques.