We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
For powerlifting and related high-resistance exercises, we tend to alternate between higher (10) rep days and lower (5-6) rep days. Obviously, the number of reps reflects the max weights that we can do at those reps. 10 reps means you can't do 11 with good form.
Of course, over time you keep upping the weights.
Our format is to do a light warm-up with the specific exercise, then only four-five working sets. And that's it for my weekly deadlifts, for example. A younger person could do more each week (like twice), but there is a time consideration too.
After reading some articles on the MusclePhD website I started alternating between higher and lower reps as well, usually two weeks at each. The articles were talking about muscle composition. Our muscles are made up of fast twitch and slow twitch components so we need to train higher and lower reps to hit the different components.