The only real viable reason to use doubbles on ice is to facilitate 60m rappels. Places like frankenstine, Rumny, Holts, kennel wall, flume etc. a single rope is fine.. Cannon and the Lake doubbles. If I were to climb Hunnington roped I would go with a single strand of 1/2 rope and make good decisions to avoide needing a rapell. In fact the only rappels i have ever done in Hunnington were during rescues.