Changed it up - low pressure, more time
I see many threads about higher pressure and short durations.
There was a pump that was an overnight pump - 3”hg for a long period of time. I’ve noticed that lower pressure/longer time seems to give a more even pump with minimal to no donut. 3.5-4” for an hour or so. I don’t pump over-night, just used it as an example. Has anyone else been trying this and if so do you get similar results (more even pump, no donut)?