the old low feint
On a technical note, feints don't really work if you are willing to commit yourself. The low front faint should be treated like a real kick and you should enter alongside (or 'slip' it) into hanmi posture and then execute technique. the second second kick (like a high kick) will be ineffective as the range will then be too close, but it will definitely catch you if you hesitate or are not fast enough (this gives time for the kicker to make distance). This is the importance of good footwork I guess.