Left foot braking is faster than right foot braking - and probably a bit more strenuous on the car. But if you don't care about the latter then it is faster.
I'm really referring to track day usage where *any* driving is probably harder on the car, whether you are using left-foot or right-foot for braking.
My real question is the reaction of the PDK gearbox? How will it deal with pressure on both pedals at the same time? This sort of thing can make torque-convertor cars do funky things with shifting.
I'm wondering, when someone is using the full paddle-shift, how will the PDK will react to somehow who is trail-braking while on the gas? Or if a driver tries to make the car "take a set" by applying pressure on both pedals entering a turn.
I haven't seen anything about this. Maybe it's just like a full manual box and there is no issue?