I ran the bike with no volume spacers in the shock. The linkage already has plenty of progression built into it, so you don't need them. Remove your air can and take out the volume spacers. You may want to run one, but I ran zero. That way, you can run the bike at 30% sag and still use all your travel as intended. Here is a tutorial video on how to do it:
https://www.youtube.com/watch?v=Lhm2A5XPslU