you already answered your qn. you were near your ceiling the the pay jump is less compared to someone who is geo3 but lower pay. Last time it was easier to see when there were clear cut 'steps' you see for individual grades but they removed that. You could actually know exactly how much someone earns frm yrs of service guess thats why they removed it. Easier way for you is to look at geo4 min....if you already hit the amt of min geo4 then your jump is minute. If you dont meet the min geo4 grade and you get promoted frm 3 to 4 then your incrwment is much higher. Hope that's clear