Jason, panicking and pulling a fake ID out: I'm the manager down at the Spud Hut. We got plenty of potatoes at the Spud Hut; we got BBQ Chicken, Buffalo Chicken, we got Mediterranean. That ones got feta and sun dried tomatoes-
Dick, almost popping a blood vessel from quietly laughing:
I love Alan Taylor for doing this.
Rhaenys choosing this specific way to fight Vhagar: using Vhagar against herself, making her weight and size be a detriment, all the while knowing Meleys's agility means she can get out of that death spiral at the last moment, where Vhagar will only be slammed down into the ground... is just wonderful. It's such a smart and strategic move because Meleys can't engage with Vhagar the same way she does with Sunfyre.
With that, the spiral wasn't necessary. Meleys could get the younger dragon in her hold and keep her there: could chase and hound, with Sunfyre being neither bigger or stronger and then being wounded so his agility and speed was also gone. The damage that Meleys could do with her claws is more significant to the same blows she strikes against Vhagar as well. Same with any bites. Meleys can cripple Sunfyre's wing. She can't do that with Vhagar.
And Rhaenys, also, being the rider she is and prepared as she is, is happy and willing to go upside down for a prolonged length of time in order to execute this move. She's putting all her trust in Meleys because once they are locked in, they are pretty much locked in and she's not shying away from it just because she's got to go upside down - which is not a good thing to be doing, generally. And it also shows that Rhaenys has thought about it. It's a calculated move, not a Hail Mary.
Even Meleys roaring, as they approach Vhagar and Aemond, it's to specifically get Vhagar to charge at them. Surprise would do them no good because they need Vhagar looking at them and they need the momentum to begin the spiral as well.