Can't say for sure what criteria they use to invite people to phase 1, but I know the 2000tt and flying time during the last 6 months are not cut-off points. From previous threads it seems that the questions you have to answer in the application play quite an important part, which is why some people spend a few weeks in working on those answers. Apparently around 80% of the applications don't make it to phase 1, and many of those that do have only the minimum required experience.
I'd say give it another go as soon as you can (think it's after 11 months), just re-work your answers a bit, give it a good think, and your fortunes might change.
Good luck for next time!
