Yes, I mapped to the throttle. set up as slider, and verified it moves in the correct direction. The one mission I tried is a hot start on the ground (Syria I think). in that I have the Virpil Throttle all the way to max. Shortly after unpausing the game, you here theengines start spinning down and then she announces generator failures.
I did try another "free flight mission and it worked fine in that as well as in auto cold starts.