There is a huge debate about what the Society of St. Josephat is all about on a Byzantine forum I just stumbled across. When time permits, I plan to delve into that one. Seems interesting. From what I could skim through, the Byzantine Rite Catholics accuse the Society of St, Josephat of creating a hybrid Divine Liturgy with many Western elements using the Divine Liturgy of St. John in a way that Byzantines have never done. I'd have to read that closer.