I recently had the pleasure of being at a liturgy where 5 Serbian deacons served. I noticed that they all wore the single orar. I also recall the last time I saw a Romanian deacon he also wore the single orar - is this a sign that the Russian typicon is extending its reach?

My understanding is that churches following the Greek practice would give all deacons the double orar (or more accurately they didn't know there was a difference)- is that changing?