In the past, you were able to only list the positions you wanted to apply for. If you weren't picked up for pilot, they could offer you nav/abm/RPA and you could decline with no prejudice and reapply the next year.
In the last year or two, the application process was changed so that you are now required to list all 4. If you are selected for any of them and turn it down, you cannot apply for the rated board again.
Obviously that makes the decision process much more difficult.
Personally, I would get the flight hours to up your PCSM as much as possible. I would get involved with as much as possible to make the 215 as strong as it can be (I think the format of the 215 has been changed in the past couple years too, so I may not be up to speed on the current format)
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