Part: Part Six - Betting After the Flop

Slow-playing a monster

Flop
Heads-upPot 1,300 (6.5 BB)722CO77 25,000 (125 BB)YOUa set on a dry boardBB 25,000 (125 BB)Aggressive BBchecksD

You opened and an aggressive big blind called. Flop 7♥ 2♣ 2♦ - you flop a full house (sevens full of deuces) on a bone-dry board. He checks.

You flop a near-unbeatable hand on a dry board against an aggressive opponent. Best?

WhyThere's nothing on this board that can catch you - sevens full on 7-2-2 is essentially the nuts and almost no turn changes that. With nothing to protect, betting only tells an aggressive opponent to shut down. Check, wear the weakness, and give him room to take the bait later.
What happensYou check behind. Pot stays 1,300 (6.5 BB). Showing weakness costs you nothing when no card can hurt you - and it's the bait.
Turn
Heads-upPot 1,300 (6.5 BB)722JCO77 25,000 (125 BB)YOUthe full houseBB 25,000 (125 BB)Aggressive BBbets 1,000 (5 BB)D

Turn J♠ - and now, with you having shown weakness, the aggressive player bets into you.

Your check induced a bet. With the full house, best?

WhyYour flop check screamed weakness, and now the aggressive player is betting to take the pot - exactly what you set up. Flat rather than raise: a raise ends the hand right here, while calling keeps his bluffs alive for the river, where you can spring the trap. Slow-playing means leaving him room to keep firing.
What happensYou call, he barrels the river, and you raise - he's drawing dead. The trap only worked because the hand was huge and the board never got scary; against anything drawable you'd have bet instead.
With an unbeatable hand on a bone-dry board against an aggressive player, you checked to look weak and let him barrel into you across two streets. Slow-play needs all three conditions - here they all held.

Slow-play only when three things line up: a hand nothing can catch, a board that stays safe, and an opponent who'll bluff if you look weak - then check to induce the bets a bet would fold out.