I have run 75 psi in my fox floats always. I had a 06 crossfire Sno Pro, and now I have a 11 crossfire Sno Pro, and both have been really good at 75 psi. Every time I check them they have barely moved off 75 psi. My 06 had over 9000 miles on it and the shox in the front still held good at 75.