Dear Sir,

TSS 4 Ceiling is not proportional compared to other grade, any reasons :
after working so far to TSO4.

Salary Grade Different between each grade ceiling Salary Range
TSS1 $1,086.00 $5,890-7,117 / 7,118-7,728
TSS2 $919.00 $4,851-6,050 / 6,051-6,642
TSS3 $849.00 $3,738-5,061 / 5,062-5,723
TSS4 $623.00 $2,988-4,874
TSS5 $1,063.00 $2,693-4,251

So sad