>>2326440I'd say the opposite - the GN Drive Taus on the Ahead seem to be able to consistently put out more juice than the Thrones, with the way they constantly release GN Particles out their thrusters.
The only officially confirmed downgrade of the GNX GN[T]'s is the lack of startup unit, which means the GN Drive has to be started up externally before they plug it into the suit, whereas the Thrones can start up theirs on the fly.