scribal habits

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