Slightly off topic but....
300°C limit for take off (due to exceeding brake energy limits for the RTO).
This is not correct.
From the A320 FCTM
"The FCOM limits brake temperature to 300deg C before takeoff is started.
This limit ensures that, in the case of hydraulic fluid leakage, any hydraulic fluid, that may come into contact with the brake units, will not be ignited in the wheelwell. This limit does NOT ensure that, in the case of a high energy rejected takeoff, the maximum energy limitation will be respected".