I did one a few years ago on an average winter day. Pawnee with 2x K13's.
Was fine. Not for the faint hearted or those of marginal aerotow currency. But not dangerous.
Generally there are two ropes - short and long to allow proper separation. If I remember rightly the short rope sits in normal tow, the long rope in Low Tow.
Quite fancy doing it again actually, might moot the idea next weekend.