Baiting is best done AFTER you have determined that your opponent might be subject to it. The most common way of determining that is by a moderately risky attack by your opponent in the first 1-2 moves of the game. If they roll for moderate odds battles (70% or less) early on, then future baiting may pay off.
Or if they try for a Russian Triple on Russia 1. 😛
But honestly, baiting only pays off when you are winning. Otherwise, baiting will always help your opponent.