On past evidence, Vettori and offspinner Nathan McCullum would be the first two picks. But the New Zealand squad should have room for a third spin option.
"I can't worry about it too much," Hira said from Miami yesterday.
"Dan Vettori has done enough for New Zealand cricket, so it speaks for itself. If he decides he's ready to come back and play again that's great, because obviously we're a better team with him playing.
"I've just got to worry about what I bring to the park, and relish every chance I get."
And Hira knows, with legspinner Tarun Nethula getting his chance in the five ODIs to follow in Jamaica and St Kitts, that his chances are limited.
"There's only four T20s before the start of the World Cup [New Zealand have two in India shortly before the tournament] so there's not been a lot of opportunities with no cricket over winter to put any numbers up."
Hira knows he is only likely to get the Indian trip if he's already in the cup squad, so Florida, effectively, is his last chance to impress.
He felt he went "all right" against Zimbabwe and South Africa.
"I guess I did enough but now I'm looking to cement a spot, and play well enough to get in the World Cup squad."
For senior allrounder Jacob Oram, the result of these two matches is less important than the players getting themselves back into match condition.
"The players look fresh. Everyone should be fresh and fit after three months of just gym work, running the roads and bowling indoors," he said.
"The key now is turning that fitness into match performance."