As the last post mentions, basic and allowance payments, could turn out to be a real pigs ear.
The oldies with high basic will want that untouched for pen pay reasons, however any reduction in allowance payments will hit very hard due the light tax on these payments.
The newbees on low basic can ill afford any reduction in basic, but they can also ill afford reductions in allowances as they using these payments to save for the future.
Add to this staff on diff pen deals, APS/NAPS/MPS.
Just another example of having staff on various T+Cs, it will be very hard to keep everyone happy with any changes.
Best of luck to all the CC, you may need it.