I run Hawk Blues in an ITB Rabbit GTI. How much pad is enough pad before leaving for a race weekend? In other words when do you change out your old pads, 50%, 25%, 10% or when the sparks start to fly?

My first race is Nashville, very fast turn 1, the Rabbit should be doing about 110 mph at the braking point. I have about 25% pad left and am trying to decide if I should put on the new Hawk Blues. When does everyone else change out pads?