Someone asked what Dan John’s opinion on this was. This is what he wrote about the topic a few days ago somewhere else. Note, the “Jim” he is referring to Jim Schmitz, former US Olympic weightlifting coach.
Dan John:
"Well, I don’t allow dropping in my home gym…just does too much damage. At the school, I get angry when kids drop light weights.
It’s hell on equipment, the floor and the neighbors. I realize that some of us would say “so what” but…over time…waste is waste. Dropping weights really eats up our platforms.
Again, big lifts, PRs, a few weeks out from the Nationals…drop what you want…within reason. I would agree with Jim that there is a value to bringing the weights down under control. The same value that respecting your coach, parents, facilities and history has in the general appreciation of the sport and life.
Jim really knows his stuff. I worked with him as one of his athletes (the old Sports Palace team) and I wished I would have listened to his advice towards my training back then. I didn’t. With the weights that you are lifting, control them.
I have plenty more to say on this, but you get the basic idea."