But the burly wing is back to his best and challenging for a place in this year's New Zealand squad to face the British & Irish Lions.
He followed up a superb try against the Highlanders 10 days ago with three in the second half against the defending champions as the Hurricanes swept aside the Brumbies 49-37.
The second was easily the pick, as he beat three defenders to score in the left-hand corner.
"He can step off both feet, he can fend and go straight through you," Cooper told The Dominion Post.
"He has a lot of qualities, an arsenal if you like. It was just a matter of giving him space.
"He's the best line breaker in the world; it's about getting him quality ball. He can beat most people in the world one-on-one."