After nearly 30 years of bodybuilding training, it wasn’t until I started 5/3/1 that I felt I was really in control over weight and rep progression. Before it was something that happened of its own accord, by chance rather than design. Too much copyng professional bodybuilders doing every exercise under the sun. Sure it works to some degree but just as often it lead to overtraining and or injury, or at the very least a stall in progress.
5/3/1 simplified training, you hit the desired weight and reps, because you are training within your ability at the moment, really owning it… back off…then slightly increase the weight and start again. You don’t work close to your absolute limits all the time, so you adapt properly. Hypertrophy is increased from accessory exercises.
Because the accessory exercises are not mandatory you can skip them occasionally if time is short or if you are not feeling it that day.
A lot of common sense, training smart(and hard), rather than just hard all the time.