Gday,
I have found that the small and recomended aileron input throughout the take off roll is sufficient up to the X-wind limits,
until you commence the rotation, then I have seen and used a seemingly LARGE amount of aileron to keep the wings level until liftoff.
I think follow the FCTM, but also you are being paid to fly the machine, so do as is required on the day.
Cheers,
Con