Four wins out of six ain't bad. Compare that with the eight matches in which they lost more than three wickets in 35 overs; they won three and lost five. As Kenny Rogers once sang: "Every gambler knows that the secret to surviving is knowing what to throw away and knowing what to keep."
A gambling cricket captain like Brendon McCullum, to paraphrase Kenny again, might have found an ace that he can keep.
McCullum appreciates the theory but says it can't become all-consuming. Speaking after New Zealand had taken a 2-1 lead in the five-match series with a game to play in Hamilton on Wednesday, he said: "It's great to be one or two down by 35 overs but you can't waste those overs solely to get into a launch position. You need momentum to build a platform."
Still, those Nelson circumstances provided surety despite Guptill receiving taunts via the crowd and Twitter about inducing boredom.
"I think people expect too much sometimes," Guptill said. "They don't know what the conditions are like in the middle. To get through the initial period, adjust and end up with 81, well, I'm happy."
The cricketing fanbase must appreciate that innings like Corey Anderson's world record 36-ball century and Jesse Ryder's 46-ball ton in Queenstown are rarities.
They were created under special circumstances with the match shortened to 21 overs by rain. In a bizarre way they're almost counter-productive because they create false expectations. The team is not suddenly malfunctioning because sixes aren't hit every 5.73 balls. The upshot is knowing such an arsenal exists when required.