Don't get caught up in the max for each week. That calculator that Jim has in the book isn't a definitive litmus test for performance, just a tool.
I generally like to be able to get 5 reps on week 3, however, if I have a shitty day in the gym and I only have 3 good reps in me, no big deal. We can't win every day.
Increase your max by 10lbs as usual. If this cycle ends up with slow bar speed and low reps across the board, go back 3 cycles and proceed again.