FNIRSI GC-01: Tube voltage profile

[PlasmaHH]

Hi, I seem to have a slightly different hardware variant than usual. With the default profile my tube is run at ~616V which is a bit too high for what seems to be a J321.

Looking around a bit elsewhere I found some people that created their own profile with different PWM values, and some that replaced a resistor.

The question now is, if there is any significant difference in replacing the resistor or using a different profile? Maybe different power consumption (the mentioned resistor R38 seems to be in the HV path to GND and is suggested to be changed from 51M to 10M which would shunt more current to GND at that point, but maybe it has another advantage?)