Contemporary Russian powerlifting coaches recommend that you film yourself lifting different % 1RM. Note at what weight the bar starts slows down—this will be your main training weight. In Soviet Olympic weightlifting methodology, the “main weight” is one that is used more than any other.
At some point this weight will start moving just as fast as the ones below it. Repeat the bar speed test, find your new, heavier, main weight, and start over…