Further to Sterling Bjorndahl's query about variants in Mt 11:9, let me point to a helpful essay on scribal habits in NT papyri, which is hard data in considering variants. P. M. Head, "Observations on Early Papyri of the Synoptic Gospels, especially on the 'Scribal Habits'," Biblica 71(1990), 240-47. Larry Hurtado, Religion, Univ. of Manitoba