So I am on cycle 3 week 3 of 5/3/1. Made great progress overall. One question though - how do I define whether or not a PR that I make is actually a PR? For example...

Last week on OHP, I hit 11x85 (week 2). This week I did 8x95 (week 3).

Last week with DL, I hit 11x185 (week 2). This week I did 6x195 (week 3).

So the reps went down but the weight went up. How do I determine if I'm stronger or weaker? Total physical work done in the set can only mean so much because I can easily OHP 50 lbs 20 times and get 1000 pounds of work, but I'd rather be able to put 135 lbs over my head once. So when nothing is constant between two "PRs", how do I tell which "PR" is... well... better? Is it common to do less reps on the final set of the third week of training? Are the weights eventually going to get heavy enough that I will only be able to do a little more than the prescribed reps?