I will do an early start (study plan) on afternoon essay problems because I have not seen many failing will all three afternoon "acceptable". I think getting the afternoon right is very helpful in passing. I am sure I did not do so well in the morning for Vertical but pretty sure did not miss anything in the afternoon. I'm guessing my morning score was in low-mid twenties (24 or 25 before curving) and my afternoon was above 90%, say 35, so according to the formula I was at high 50s/80.
Make sure to go over multiple problems types. You need to address all the items asked in the problem statement. I used a balanced combination of calculations, graphics/sketches, code citings, and also provided some text explanations as well. For example, in one of the problems, I ended up with two layers of tension bars and stated that "I assumed both layers will yield" so I used fy = 60 ksi rathern than having to find fs. Or in another problem, I stated that I conservatively used Vu at the face of support for finding required shear reinforcement.
