Since your brake efectiveness becomes degradated in slippery runways, aerodinamic braking is welcome to help you to stop the aircraft.
But if you have difficulties with directional control you can always bring the T/R`s to idle and get a more effective directional control imediately and aplly differential braking.
When applying directional braking,try not release the pedals ,instead,press harder the pedal you want to bring the aircraft to.
Hope to have helped you.
Happy New Year Folks
