Actual senario in school, base salary,

13 yrs, female, mid-career, GEO5A, 8.5k (increment 5 to 5A was only $200)
9 yrs, female, HOD, NUS grad, GEO5, about 7k plus (she said it's below 8k)
4 yrs, female, mid-career, GEO3, 6.1k

12 years, male, PGDE, GEO5, 7.4k
11 years, male, NIE grad, GEO5 (SH), 7.6k
6 years, male, PGDE Overseas degree, GEO5 6.6k
4 yrs, male, NIE grad, GEO4, 5.3k
3 years, male PGDE, GEO3, 5.4k
3 years, male PGDE, GEO3, 5.7k