The Black Ferns Sevens are working hard to keep one step ahead of the chasing pack going into this weekend's women's world series tournament in Japan.
Captain Sarah Goss says her team aren't easing up going into the Kitakyushu tournament.
They currently top the series ladder with 56 points after three of the six tournaments, six points clear of the second-placed Australians.
The Kiwis won the opening Dubai tournament, beating Australia 17-5 in the gold medal game, then finished third in Sydney with a 19-0 win over the Olympic champions.
The Black Ferns Sevens also won last month's Las Vegas tournament, beating Australia 28-5 in the final.
"We're trying to change little things individually and as a team because we know it's going to be tough, it's not going to be the same as it was in Vegas," Goss said.
"We want to consistently be getting better and also we want to keep changing the way sevens is played.
"The more you can do that, the harder it is for teams to defend."
Coach Alan Bunting has made three changes to the team which won in Las Vegas.
Rebekah Cordero-Tufuga returns while 17-year-old Lyric Faleafaga joins the squad for the first time as a travelling reserve with Tenika Willison.
The Black Ferns Sevens open the Kitakyushu tournament against hosts Japan on Saturday afternoon (NZT), then face Russia and France in their remaining two pool matches.