In 2015, the Dragons won eight of their first 11 before limping into the playoffs in eighth spot and bombing out in week one.
McGregor, though, believes his class of 2018 is different — and ready to keep the record streak rolling.
"A healthy roster definitely gives you confidence going into each week," he said as the Dragons eye a seventh straight win.
"So whilst we maintain that healthy roster, it obviously gives you good cohesion across the board.
"People can talk about it all they want. We've got a vision and discipline around that and standards around how we play. Each week we're learning to play a different way to win, which is pleasing."
Mathematically, the joint venture outfit likely only need to win six or seven of their remaining 18 games to make the finals and McGregor is refusing to play down his side's sizzling start to 2018.
"It's very important to start the year well. It doesn't matter what anyone says," he said.
"Everyone can say 'oh, you're peaking too early" or whatever they want to say. But if you've got a healthy roster and you're winning games, it certainly helps throughout the year when you don't have a healthy roster and you'll have people away possibly through representative footy."
In an ominous warning to the Warriors, who themselves won their first five matches before falling to Brisbane 27-18 on Saturday, McGregor is demanding better from the Dragons than their 40-20 defeat of Cronulla last Friday night.
Preserving themselves for Wednesday's Anzac Day blockbuster against the Sydney Roosters will not be accepted.
"We'll go out and play our best on Friday night because we didn't show the Sharks our best," said McGregor, who laughed off talk that a nasty bug had swept through the camp.
"We need to show the Warriors our best on Friday night and, if we do that, we'll give ourselves every opportunity."
