New Zealand coach Graham Henry sent a chilling warning to the home nations, saying his side can get better after their 41-3 drubbing of Wales.
"We're looking for perfection and there were 15 handling errors out there, but we enjoyed that," Henry told BBC Sport.
"We're expecting a stiff test in Dublin next week, though, and others in Twickenham and Murrayfield."
Henry praised the defeated Welsh, but criticised the booing of his captain Tana Umaga by the Cardiff crowd.
That was a result of the centre's spear tackle on Brian O'Driscoll in the first Lions Test this summer, an issue Henry feels should now be put to bed.
"The booing was uncalled for, the O'Driscoll incident was an accident that happens in rugby and we need to move on," said Henry.
"Tana is a sportsman, as he showed a few years ago in the incident with Colin Charvis.
"Credit goes to the Welsh team in this game, though. It was tough for them with so many guys out, but they defended well and will come back stronger.
"Some of our new guys were outstanding, and Dan Carter was superb in just his third game back after a broken leg."
Umaga himself echoed Henry's ominous belief that the All Blacks are on an upward curve.
"It was very important to get the result we wanted and I'm happy that we've started the tour well," he said.
"We'll keep looking after ourselves and keep working on the things that we know we can do better.
"Wales missing six players was a big lift for us, but led by Gareth Thomas I think they can repeat their Six Nations win."