Martin is honest about his lack of batting prowess and that his New Zealand record of 25 ducks is partly because of a recalcitrance on his part when it comes to practice.
"I have, at various stages of my career, put quite a lot of work into my batting, but to be honest, over the past three or four months I haven't and maybe that's been shown in even less time at the crease.
"But the fact is, the quality of the guys bowling to me has been too much for me.
"I generally seem to come in facing a couple of fast bowlers with a new ball bowling more than 140km/h and that's just a level I can't battle with.
"Some days, I'll get through those first six or so balls and hang around for another 20, but lately that's something I haven't been doing."
Possibly, if New Zealand batted longer and Martin was coming in around the 120th over against an older ball and tired bowlers, he might actually go OK.
But then, there's his vision.
Like everyone with a New Zealand Cricket contract, Martin regularly has his eyes tested and 18 months ago a test revealed he had a problem.
"The guy said my eyes were fine and that he'd tested many New Zealand batsmen over the years with similar eyes, although they hadn't had consistent careers."
The problem was he wasn't gleaning enough visual information quickly enough.
"Essentially the relaying of information from my eyes to my reflexes and what I do with my body is a little bit slow," Martin explains.
"I don't react the way I should [he clicks his fingers for emphasis]. It does take me a while to cue into the ball and locate it."
Martin said he was given a few things to work on to improve his ability in this area "but maybe I'm an old dog learning new tricks and I was never going to get that sorted".
To expand on what he's talking about, Martin gives an example of a test the Blacks Caps use: rows of numbers flash up on a screen with seven numbers on each row. The numbers are on the screen for a fraction of a second and players have to recite as many as they can. Those with faster eyes can scan more numbers than those like Martin with slightly slower eyes.
"I can get five or six in the top line, but a guy like Brendon McCullum can do the whole top line and four or five of the second line; he can take in more information visually in that split second than I ever could.
"I'd love to have a day with Brendon McCullum's eyes he just seems to pick up the ball so quickly."