Yeah. I think that sort of thing is a carryover from "traditional" programs where you have to go all out every session. As a result, people think that they cannot make progress unless they push their maxes each session. In reality... using submaximal (notice I did not use the word 'suboptimal' because it is definitely NOT suboptimal) weights can net you more consistent progress. Nobody can keep pushing their maxes indefinitely.
Using submax loads allows you to build up to your previous max and push for new maxes, gaining strength the whole time. As long as you don't stupidly low when you cycle your weights, you can still gain strength/size off of lighter weights. Also, since you aren't pushing your maxes the whole time, you are able to recover better, etc etc
Using submax loads allows you to build up to your previous max and push for new maxes, gaining strength the whole time. As long as you don't stupidly low when you cycle your weights, you can still gain strength/size off of lighter weights. Also, since you aren't pushing your maxes the whole time, you are able to recover better, etc etc