Just finished a tune with 32psi and a 13 psi spring.
Drives beautifully.
Rick
andrews S3 per chance?
My own racecar runs tial 44mm external gate, hybrid gt3582
stock seat ibiza n75 controls.. Actuator pressure of 12psi... 26psi from 60% duty cycles.. plenty left in it.
you dont need stuff springs in these gates...