That was the two-stand eight-hours strongwool ewes record of 1066 shorn by brothers Rowland and Doug Smith on January 11, 2011.
On Tuesday at Te Hape, east of Benneydale on State Highway 30, Coel L'Huillier, of Te Akau, and Kelvyn Waler, of Taumarunui, broke the record by just two sheep.
L'Huillier, who in 2013 helped set a five-stand lambshearing record, shore successive two-hour runs of 134, 133, 135 and 135 for a total of 537, while record-attempt newcomer Walker shore 134, 130, 133 and 134 for a total of 531.
In the 2011 record, Rowland Smith shore runs of 141, 142, 140 and 139 for a total of 562, and Doug Smith's runs were 127, 129, 126 and 122, totalling 504.