Funny you should mention that. I think the American Antiochian diocese completely depend on their Bishops, and each one refers to different sources. Bishop JOSEPH is strictly the Antiochian Typikon, Bishop BASIL uses a mix of some Athonite typikons (such as for Lenten Weekday Orthros, he pulls it from an Athonite Typikon, which one I cannot recall) and the National Office pulls from Violakis at times.