I think that we are fortunate not to already have a system of personal contributions which means that their introduction would be far from straightforward. The abatement of pay is not quite so simple though. The deduction is taken from civilian comparator pay which then goes into the comparison calculation. As a result the deduction is not straightforward, and in the case of the last calculation of the beneficial value of AFPS a reduction in its assessed value from 7% to 4% did not lead to a pay rise. That said I think that there would be hell to pay were there not to be a salary rise in the event of its removal.