He opted to hit three wood from the tee on 15, 16 and 17 and hit "quality iron shots" to give himself birdie opportunities.
"My putter really lit up during that stretch of holes. I was holing everything from around 20 feet. It was a great feeling to see them all go in the hole."
Gill went from feeling great to feeling the nerves on the 18th hole as he tried to close it out.
He delivered a shot that was worthy of being crowned the champion - a rescue club to the long par three to around six feet - and he coolly sank the birdie chance to applause from the gallery around the final green.
It was an emotional moment for the youngster.
"I have a lot of people to thank who have helped get me here," he said. "The support of Golf Northland has been fantastic. I have put a lot of hard work into my game and a result like today makes it all worthwhile."
Gill's performance is even more impressive considering his record in 2014 is hardly startling.
He has played in six events this year with his best result, before Friday, an eighth place at the North Island Under-19 Championship in Hamilton.
But he turned that around in spectacular style when he claimed the Under-19 title and followed in the footsteps of some Australasian legends.
Earlier in the Championship, fellow Northlander Kadin Neho had hit his first albatross of his amateur career but was unable to capitalise on his form from the early rounds.
The NZ Age Groups Championship is a national junior title which has been won by many of the best players from both sides of the Tasman.
The names on the New Zealand Under-19 trophy include the likes of Greg Turner (1981), Michael Campbell (1987), Michael Long (1988), Adam Scott (1996), Steven Bowditch (2000) and Jason Day (2004) illustrate that it is a stepping stone event on the golf pathway.
"To follow those sorts of players is a real honour and I am looking forward to what will happen next with my golf game," an elated Gill said.
