So I have just tried to add volume spacers to my vivid air.
It's way more.complicated than the monarch.
I opened up the air can, removed the inner air sleave. Added 5 of the red bands. Then pit it back together following the instructions.
I didn't open up the damper part, so I never drained the ifp chamber.
The problem is, when I put the shock back in the bike and cycle the shock gently with no air in it I hear/feel a grinding noise in the end of the stroke. In the last 2/3 cm.
It's really concerning. I took it apart again and made sure the inner sleave is seated properly, and then put it back together, but still makes the grinding noise.