For my past several favors I've been testing this theory that the Favor proc-rate is dependent on time of day. Since the Legendary Nodes are MIN = 5am - 7am and BOT are 5pm - 7pm I thought to start here. So far I have received > 4 procs for each Favor, this is for Yellow Ooids in the Churning Mists & Black Swan Feathers in the Dravarian Hinterlands. If anyone else wants to test this you're really not losing out on anything if it is in fact just random. I've gotten 9 Black Swan Feathers twice when gathering from 2pm to 7pm