ULM,
There is no estimate of penalties there... The base pay's are about 4% more and 8% more respectively.
The actual shift penalties are commuted at 27%. But lets get it clear, you should compare jobs with base salaries. Shift penalties are just that, they are not part of your salary they are an allowance for actually working shifts.
I'd happily take the money without the shifts, but life is not like that.
For example an ASO4; an editor of our inhouse mag gets paid $45K, no shift work.
A FS officer who does HF, no licence, gets $44K starting point, before shift penalties.
Tacolote