From your original question I am assuming the Bus, OLD SMOKEY has once again said it far better than most of us could muster. Just two add my two cents worth, our aircraft have carbon brakes and we try to limit individual applications and brake riding whilst taxiing, our SOP's require us to do the following; be in REV idle by 70 and stowed by 60 due to avoid blade erosion and we stow spoilers after clearing the active.
Cheers, D.L.
