Don't do anything drastic like water dunk. Keep breaking in gradually. To speed it up a bit, use a glove mallet and a good conditioner like Nokona or ProPreps and just a bit of warmth, like in the back seat of a car on a warm day. A quick one-minute shot in a pre-heated oven will do the trick. Just enough to help the conditioner melt into the leather a bit.
Apply conditioner, warm, Hammer the pocket with the mallet in a way that simulates catching the ball. Repeat. Repeat. Repeat.