the only way you will really outclass them is by speed and turning, i know plenty of jets/planes that are good at turning and going fast. Will 2 r27ers really impact lobbies that much? I really dont think so.
And yes i agree compression really will help this plane but it will be a mid jet to its counterparts at 12.7 still. premium hornets get up to 6 decent missiles.
Pretty much everything at 12.0+ is in a bad spot, but the idea the Mig-29 vs Phantoms is considered a fair fight to you is kinda insane. Though I would enjoy having an aircraft like the Tornado F3 drop down to 11.0/11.3 to compensate