Good to know, thanks for sharing your settings. I will try this next.
Using a Fireboard Drive with PitBull fan on a G2 Chubby, I had terrible overshoots, and never could get the temps to stabilize. Tried all mentioned in this thread to no avail. Finally figured it out though, got rid of the PitBull fan and adapted the Fireboard fan to the setup, and no more issues, other than what I create for myself.
Found out that the GURU fans are constant speed, and unable to run "properly" with the Fireboard Drive. The GURU fans are just on or off, and can not properly function with the Fireboard's variable speed fan output, i.e., if the Fireboard runs the fan at anywhere from 1% to about 30%, the PitBull fan doesn't even run, or if it does, it pulses. The variable speed fan from Fireboard will work perfectly at 1% to 100%, and allows the Fireboard to control the temps much better, in more granular detail.
If you have a Fireboard Drive and a GURU fan, test this out by trying to run the fan on manual at 10%...my PitBull fan would not even try to run till i was above 30%, and then it just pulsed.
Anyone want to buy 2 PitBull fans and a GURU Backwoods fan adapter...I got em if you want em.