I def agree on the keeping it under control during meets. I've only been to one meet and we had to keep the weight under control. It could be put down loudly, but still under control. And as a meet draws near, I make sure to train like a meet, with pauses at the right times, etc.
For example, right now, on my benching, I just touch and go. However, as my next meet draws near (end of May) I'll start pausing at the bottom, even waiting for my spotter to say 'press'.
Kinda the same theory for the deadlift with dropping it. Like I said, my concern is injury. With sets above five reps, my negatives tend to essentially fall apart...if the negatives offer some useful benefits to strength gains, definitely want them in there...just gotta be careful...if not..yeah haha