Horace walker hut, Cassel flat hut. Southwestland.

Hi all, Im looking at doing a route from Horace walker hut, along the top of the Regina, then along the Karangarua range, down Cassel hill to Cassel flat hut. The time of year will be Feb-March and we are all pretty experienced in the hills. Has anyone done this? comments and opinions are wellcome. Thanks Lostone