Depends what trade you are now. If you are TG1, TG17 or other trades that were being shed in final round of redundany (this time around) then there is a good chance that RoS will be ignored. If you find a job quickly or have a particularly strong 'compassionate' case this will help. TG2, FFtr, RAFP, Gnr or Medic and you may not be able to get out earlier than your RoS unless there are real and significant factors that will affect your ability to operate fully (in UK and in operational theatres).
The paperwork is staffed through PMA6 staff to PMA5. Make sure that the paperwork is carefully written up and that you do not resort to emotional blackmail. Get the Chf Clk to draft some meaningful words and not just 'agreed', strongly recommended' or other meaningless but rather too well used comments. The case will need the support of your Flt/Sqn Cdr who may well be required to indicate whether the post can be gapped - there is of course a risk here that they may not be able to take. All too frequently the Flt Cdr wrtes - supported if PMA can replace........this will not help you. Hope this helps.
Ed