Attempting to keep the hook grip when racking the bar results in a slower turnover that is very often uncomfortable or even painful on the elbows and wrists. Because of these issues, keeping the hook results in a greater likelihood of missed lifts, so with this in mind, be sure to release the hook on your cleans.
#5: Hook Grip and the Jerk
It doesn’t make any sense to use the hook grip on the jerk, so don’t do it (Figure 3).
When you prepare for the jerk, the bar is sitting on your shoulders since you just cleaned it, and since you read tip #4 above, you’ve already released your hook grip. Additionally, the hook grip is useful for pulling movements (e.g., deadlifts, snatches, and cleans) and completely useless for pushing movements like the jerk, so attempting to regain the hook grip before performing the jerk is pointless and - even worse - a waste of time and energy.