Morgan said it came down to the Pinkers - Cary and Warrick - who were all square in their last game with Taranaki and the opposing skip drove three times but could not swing it his way.
"This was an exciting finish - it was the last bowl."
Development kept the Duckett Trophy when they finished tied with Taranaki on 12 points, but with a superior ends, 23 to 5, while Manawatu finished with 6 (-28).
In the women's Tri-Series games at Castlecliff, the Wanganui teams showed improvement on last year as they came runner-up in both grades, with the seniors missing out by a point to Manawatu, while the Development team was tied with Taranaki but lost on differential.
Coach Chris Waterson and manager Aka Alder was said how proud they were with the improvements and the attitude of the players.
"Very positive, especially the younger girls, starting to show a bit of form," said Waterson. The tournaments will be in Taranaki next year, in a two-day format.