A friend just showed me a cool way to get a minfernal. Make a target minfernnal macro. Keybind interact with target. Take a flightpath through Felwood (I think it might need to originate outside of Felwood to put you on the "flightpath" server - the one where you can see the little pets below /cry).
When you fly over, the gryph goes close enough to the ground to engage in battle. It stops your flight and you start pet battling. Wow, I wish I had known this sooner. Well, would just be another elemental stone sitting in my bags actually
Anyway. GL and hope this helps someone. Many thanks to my guildie Ephlock for the killer tip!!