On both occasions he beat Hastings gun Rowland Smith, who, also on both occasions, went on to win the Golden Shears Open final a week later, and who this year won the world championship in Ireland.
In 2013 Buick was unable to be at Golden Shears in Masterton, being best man at a friend's wedding, but he made the Golden Shears open final this year for the first time, and has also shorn in two New Zealand Championships open finals in Te Kuiti.
Third on Saturday was Dannevirke shearer Adam Brausch, Australian world championships team member Jason Wingfield was fourth, Aaron Haynes, of Feilding fifth, and Queensland-based Jovan Taiki, from Porangahau, sixth.
There was similar New Zealand domination in other events, including the senior final won by Turi Edmonds, of Raetihi.
Third place went to this year's New Zealand Championships intermediate winner Darren Alexander, of Whangamomona, Jacob Moore, of Marton, was fifth, and 2013 Warrnambool intermediate winner Alex Smith, of Gisborne, was sixth.
The Romney Shears intermediate final was won by Ramone Smith, of Gisborne, while multiple former world and Golden Shears woolhandling champion Joanne Kumeroa, from Wanganui but based in Victoria, retained the Romney Shears open woolhandling title.