Starting with victory in the North Island final over 10 ewes and 10 lambs each on Friday, he stumbled only on the merinos of the three-types circuit final won by Invercargill shearer Nathan Stratford before finding his element in the Open final of 20 second-shear sheep each.
Top qualifier of 38 in the heats, seventh in the quarterfinals and top qualifier again in the semi-finals, Smith shore on stand No 2 alongside Taranaki-based Scots farmer and 2012 World and 2015 Golden Shears champion Gavin Mutch, who on No 1 made the pace from the start.
Mutch breezed through the first 10 in 7min 49sec but to perhaps the biggest roar of the night was overtaken in the last stages by home-town hope Mark Grainger who finished in 15min 47.35sec.
Mutch was next off, followed by Pongaroa shearer David Buick in a brave performance after an injury during the week, with Smith and two-times winner and reigning World champion John Kirkpatrick, of Napier, next, locked together at 16min 2.67sec, just 15 seconds covering the first five.
Smith won claiming the better combined quality points, and Kirkpatrick had to settle for second place in all three of the finals, having been runner-up in the Shearer of the Year and Open finals last year, and the Circuit and Open finals in 2016, when he won the North Island final.
Mutch was third overall, Buick fourth, and Stratford fifth, with Grainger drifting to sixth, penalised heavily in the pen judging after having the best points in judging on the shearing board.
Smith won the biggest prize in shearing sports – a $15,499 Can-Am Outlander 570 Pro Quad Bike, and $3000, and with Stratford another UK trip to represent New Zealand a series of shearing test matches in July.
The process for finding the two machine shearers to wear the black singlet at the 2019 World championships is expected to be decided in August.