Kick Back won her second hurdle start in 2014 back before she made a winning debut last winter over the big fences.
She then progressed to finish sixth in the Grand National Steeplechase, but this time around Myers elected not to go south and remained focussed on the Ellerslie feature.
"I thought the distance may be a bit far for her, but to win today is great," Trotter said. "He doesn't tell me much, but Kevin does a fantastic job, as do all his team."
An integral member of the operation is jockey Shaun Fannin, who again gave a patient and polished performance in the saddle.
He was happy to sit well back in the field for most of the race before asking the eight-year-old to get serious and she improved through the field to be third turning for home.
Amanood Lad gave the mare a run for her money in his bid for a repeat of his 2014 victory, but Kick Back was too strong and won by two and a half lengths with the longshot Zed Case a head back in third.
Between them this year Myers and Fannin have broken jumps racing records that have stood for more than a century and Saturday was a fairytale end to an outstanding 12 months.
The usually media shy Myers issued a warning at the Ellerslie jumps forum on Friday that jumpers needed to be looked after under the handicap system or risk losing them to retirement or to overseas racing.