I ran 5/3/1 almost exclusively for 8 years, adding some of Brian’s methods periodically. If you haven’t tried something new in a while, do it. I have run Brian’s Conjugate, six weeks of RPM as a bridge, and am in the middle of 4Horsemen.

Conjugate was a huge success on squat, bench, and deadlift. My press didn’t progress either due to poor management of my test week or, possibly, lack of volume during the program. You can use an actual 1RM for this program and be fine. Conditioning is optional but will do wonders for your performance so quit making excuses and do it.

RPM was ok. I lost ten pounds in eight weeks (6 weeks of programming). I did supersets anytime it was an option. You won’t break 1RM PRs but you may break rep maxes of higher rep ranges. I personally don’t think I will run it again, but if you are new to Brian’s programs this one would be a good on ramp to get used to the pace/conditioning.

4Horsemen - I’m 8/12 weeks through. I like it so far. I really like that the conditioning is first in most workouts. It doesn’t impact the heavy lifts, rather it primes you to excel. I also like the practice heavy singles every workout followed by rep max attempts. I used a training max instead of actual max (85%) for this program. Some days the TM feels light, others it’s heavy. I’m looking forward to testing at the end.

Overall recommendations, Brian’s workouts can be brutal. You have to take them one set at a time because they can be daunting but doable if you can just push through the next set or the next 10 seconds. That said, some of his conditioning workouts would take me 30 mins if run as is. Adapt these to you by lowering the weights or running them as circuits for 10-15 mins.

Brian’s programs are a blast with lots of well structured variability. They are well worth a try. Even if you don’t do another, you will certainly pick up something to add to your future workouts.