This is a great Vernon move and is good if you need to supposedly select a random card from the middle but in fact need to take the top card. It appears that you do a kind of fancy strip out cut and then cut the deck into three piles – the centre pile is actually the top half of the deck and so the top card can be produced.
This minor variation uses the same action but produces the bottom card instead.
Cards are in riffle shuffle position with a right thumb break below the bottom card. If you now carry out the actions of Vernon’s cold deck cut just prior to the three packet table cut you’ll find that the card below the break is automatically transferred to the centre pile. If you now make the three packet table cut the original bottom card is now on the top of the middle section. Undoubtedly thought of by many but I thought it was worth mentioning.