I have been successful in booking the PPT trip on behalf of a friend using (his) miles for 2 in J, so it is definitely possible. And I only called 4-5 months in advance, so it isn't completely unreasonable to do even if you aren't at 330 days out.

The ungrateful SoB decided that he couldn't be flexible one day off his desired itinerary and ended up paying to fly on Air Tahiti Nui instead, but that's a whole different story.