I would advise you to practice this several times well before you may need to do it.
Every boat behaves differently so having an idea as to how your boat will sit, and determining how much rudder
you will need to apply is important. So start in lighter winds and sort this out, as well as clarifying the means of sailing on (releasing the genoa
sheet, take in the opposite sheet and turn rudder
off the wind). Then practice it in heavier wind
. I've found that the sail plan that was correct for sail balance before, will provide adequate balance when hove to (reefed of un-reefed). Practice this nevertheless.