I tuck the pinky just about all the time, and this is what I do when I hook the ball:
1- At stance, with the ball in hand, my palm faces up.
2- I concentrate on having feel of the ball on the base part of the index finger/upper right corner of palm of hand.
3- I keep this feeling throughout my approach/delivery, which results in no uncomfortable feeling of tucked pinky, and gets maximum lift/leverage at point of release.
Hope this helps.
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Regards,
BowlingWolf