I often wonder why when tasked to make long distance rescues in medium to large helicopters where mauw on take off is not a problem, that pilots don't take some 44s with them and refuel in the air. Having done numerous ferry flights in S76 and the Bell 212, we used to take up to 10 or more 44s with us to give legs of 1000 miles with ease.
I would much rather have too much fuel than too little!