Seems like Rose has no idea about magic so i hope you won't have her match the MC in power. I was disappointed when he said she would win against him in a battle of attrition.
I'm very eager to read how MC will fit into Hogwarts considering he's special grade close to Dumbledore power level and Hogwarts itself being different, just don't need the MC
You know I always thought that the six eyes don't grant control, it's the awareness and the processing power they grant that allows a bearer to reach that level, so they still have to train for it.