I heard that more recently a groomer manufacturer came to do a one-time demo and groomed Extrovert with a winch cat.
When the snow is great extrovert is probably one of the toughest runs in PA. However, its usually an icy, mogully mess. With the weather we get now it rarely looks like the pictures Jimk posted.
My local hill roundtop bought a winch cat to help with their steep terrain as well as other places when they want to move a bunch of snow around. It would certainly help if Blue Knob had one!
Its unfortunate Blue Knob always seems to be run on a shoe string budget. It has the potential to be a really good place.