Track tire pressure questions

i have the 4S's on my car. taking her out for a spin on the track. no Cup2 R's yet. on my R8 the 4S tires liked 27 cold and warmed up to 33 (audi recommened this on track) they did get oily. at times i dropped it to 30 hot, but they got squirmy.

has anyone tracked their 4s tires yet?