[steveproracing]

Every meeting without fail. A new built shock performs best. I can feel the difference by the end of the meeting. Yes a vented diaphragm shock lasts longer and is much more consistent and still feel fresh at the end of a meeting. This is the way I have gone on my cars but I still rebuild for every meeting as I know my car will work better with new shocks on. New seals every 4 meetings.
I always use green slime and a vacuum pump to remove air.