The pair are now challenged with translating that form into the test arena to prove the discipline engendered playing the longer form day-in, day-out has benefits.
Compare that to others in the prospective test squad who have played only shorter form cricket since South Africa left in March. They also have to prove that success comes down to mindset and confidence rather than format.
Brendon McCullum will be rested from New Zealand's limited overs matches, having averaged 24.08 in 12 IPL innings with a strike rate of 102 to help Kolkata into tonight's final.
Ross Taylor had a mediocre series by his standards for Delhi, averaging 19.22 and striking at 110 in 11 matches, while team-mate Doug Bracewell had one stellar cameo, taking three for 32 (dismissing Indian batsman Virat Kohli and two tailenders against Daniel Vettori's Bangalore). Vettori's batting was rarely sighted but his short format bowling was miserly (economy rate 6.71). However, his ability to take wickets remains an issue with just five wickets at 47 and a strike rate of one wicket every seven overs.
Perhaps the two best-performed New Zealanders in the IPL, James Franklin and Jesse Ryder, will take no part in the West Indies tour.
Franklin helped take Mumbai to the first elimination final with an average of 24.44 and strike rate of 138 in 12 games. He'll be perfecting his T20 game for Essex before the World Twenty20 in September.
Ryder's Pune exited early but he still averaged 25.6 at a strike rate of 121 in 11 games. He remains out of national favour because of a scroll of past indiscretions.