I know the program. I know how it works. But I also can use my own brain.
What I'm saying is - don't short-change yourself by adding 5lbs mindlessly if you can put on 10. If your gains don't allow it, then don't do it. But if you're doing 10 reps on your last set of week 3, up the poundage accordingly for the next cycle!
My comment was within the parameters of the program. Perhaps I should have been more specific. If you're increasing the weight so much that the "1RM" you base the weights off of is your actual 1RM, then there's a problem.