Personally Gus' theory makes some sense but it must come with a rather good reading ability as well.

Many times you will see Gus play a hand to the turn or river...He will sense the hand and then play accordingly. Often he does call not because he thinks he's ahead but because he's getting information as well as reinforcing himself as a caller. The absolute horror for players though is when Gus senses their hand on the turn and then either bluffs them right to that uncomfortable level or plays his strong hand into them because he knows they're strong enough to take the bet.

Basically Gus attacks players on the hardest street to play in HoldEm. More value gets missed and more fold equity gets lost by players who incorrectly play in Gus' hunting ground...The Turn.

PK