You can motor it to lower the EGT, but a UH1 has a lot of weight up top that will turn and that canes the battery, in an area where the natives are a bit inhospitable the idea of an unnecessary shut down and the possibility of problems on start would leave me wanting rotors running every time.
I've only once flown a UH1, and never in a shooting gallery, but I do remember the EGT acceleration reallly got my attention. SASless will probably be along shortly to give an exact answer from experience.
SND