Gotcha. Looking back I see I misread the word "can't' as "can"

. Big difference. My bad! Please disregard my previous.
I wouldn't recommend adding any presses to this program in order to get past a plateau. If your goal is to get the 5 reps before X-mas then I'd bet that simply doing 3 reps on the third and 4th set of the ramp up instead of 5 will get you there.