I've only skied there for a day, march last winter, but ohh what a day.!.60 cm of fresh and no one wanted it, except me. Despite that amount of fresh snow, I still managed to run into some rocks buried deep under, So No, it doesn't hold snow very well as it is south-facing.
Unfortunately they did not open the top that day, and it was pretty cloudy so I couldn't see the surroundings very well. But according to the topographic map it should be possible to ski various routes from the top, also the one you mention. But simply going outside the piste from the top should do it as well, and the snow probably holds better here as it is northeast-facing.