ryano
Try not to scare young people off to much about going for FSP. Whilst you are semi right in saying that you can only do FSP once, that is only the flying component. Many people come back just to do the OSB again if they are deemed not yet suitable for officer and there is no harm in this. Better to give it a shot at 18 and get "not yet 12 months" at OSB then giving it a shot at 20-something and still getting told no.