In the new school, you will need at least 2 years for the school to observe you before they will recommend a change in CEP. Unless you really shine..... then possible in the first year.

I would think talking to your RO to know your strength and area for improvement. Show your willingness to take on projects to lead at level, and be part of a school based project. Those are traits of a GEO 4 officer.

Have a male colleague got GEO 4 just this year. Entered service in 2013. And he has received some Bs..