SASLess,
Quite so chap, and I have run out of power in a Chinook a few times. The trick for a wokka driver is to remember your mortality in Afg and treat her like a "real" helo, not just in terms of power but also control authority, and plan your approaches and departures accordingly.
However, in the UK, at ISA, OEI hover IGE at full fuel (3000Kg) and about 2500Kg of troops / cargo is a happy place to be compared to most helos, you don't have any TR / MR torque considerations on the roll out and the aircaft is designed, and the crews trained, to land at up to 60kts IAS.
Best place to practise 180 EOLs? The simulator!! Though a competition to do EOLs to the Carrier in the Sim was quite interesting.....