Mistake #1: Pausing at the bottom of the squat (or descending too slowly)
Quite simply, don’t pause at the bottom of your squat. This makes for a harder and less efficient squat as it ruins the effect of the stretch reflex - this is precisely why a pause squat always utilizes less weight than a regular squat.
To eliminate a pause at the bottom of your squat, cue yourself “think up all the way down.” In this way, you are preparing yourself for the upward aspect of the bounce throughout the entire descent, so you’ll be ready for a nice, sharp turnaround the moment you hit the bottom of the squat.
On a lesser note, don’t descend too slowly, either. If it takes you three seconds to reach the bottom of your squat, speed things up a bit. You want a controlled descent, but not a painfully slow descent.