Had a call from a colleague about this yesterday and all isnt quite as rosey as it appears.
If your on AFPS 05 then PES will suit but whom out of us elected to change as none of us ever thought we'd ever grace the corridors of PESness?
As NCO pilots are only allowed to reach level 22 as the maximum, the rewards if for instance you are a WO1 are almost non apparent.
In order for this to work an option to change to 05 or a raising of the attainable level as an NCO must be in place otherwise its simply a paperwork exercise that will only spoof the foolhardy.