Craig Hirota suggested to do the 1RM first, followed by the sets of 5. It worked! The 392.5lbs x 5 felt light (until I added more reps). Videos below:
Squat
Warm Up
45lbs: 10
137.5lbs: 5
227.5lbs: 3
317.5lbs: 2
367.5lbs: 1
407.5lbs: 1
Main Sets
467.5lbs: 1
392.5lbs: 5
Overhead Press
Warm Up
45lbs: 10
72.5lbs: 5
97.5lbs: 5
137.5lbs: 3
187.5lbs: 2
Main Sets
227.5lbs: x,1,x
Missed 1st rep. Felt like it was going up, but then bent backwards too much and lost balance. Found out after the set that I didn't put collars on the right side of the bar and the two 45lbs plates were sliding off.
Hit the 2nd attempt, then tried a push press immediately after the rep. Failed at the push press.