I think that is the first edition. I would do the Triumvirate version because it forces you to pick the absolute best movements for you personally. No fluff.
Remember these things (not necessarily an exhaustive list):
-Always try to perform the main lifts explosively but under control, even when the bar gets heavy and slows down
-Push your last set hard, but not to absolute failure
-Do your assistance work like a bodybuilder, meaning feel the muscles working, don’t try to just move the most weight
-If you feel like you are getting too many reps on the last set, don’t worry, the program and the weights will catch up to you
If you feel like you need some more work with the main movements, you can always go back to the first set weight and knock out a couple sets of 5 after your PR set. I would start small, say 2 sets of 5 if you choose to do this. When you see people on the forum refer to FSL (First Set Last), this is what they mean.
Above all else, make sure you put effort into recovery, don’t just expect it to happen because you didn’t train that day. Size and strength gains happen when you eat enough, sleep enough, and eliminate stress from your life.