Unless one is a scholar with probably Perm Sec CEP, one is unlikely to have promotions every two or three years, or will eventually be stuck at either GEO5 or GEO5A till retirement, getting lousy PB yearly due to higher expectations of the grade, and for the very reason one has reached his or her maximum CEP. At the same time, doing sai kangs mostly unrelated to teaching, cause the scholars still can climb.

The system is uninspiring and detrimental to the mental health of both students and teachers. It is no wonder there are students who become siao and murder fellow students, or teachers who sabo other teachers for higher PB and grade. Why rank teachers when students should not be ranked?