cx_773er,
i would assume that anybody attending flight grading would take a few refresher lessons or solo flights just to make sure they can still do all the things they will be assessed on.
As a for a low hour flyer, how low? If still near 0, i would be inclined to take more lessons. I would read the theory behind the the flying you will be assessed on and make sure you understand what is required to complete that certain section of flight e.g. steep turns, stalls etc. Couch flying would also be beneficial i think in helping you mentally go through checklists and procedures.
Goodluck
