Question about Rockshox SuperDeluxe spacer install and SAG/PSI

So I have an evil with a Rockshox Super Deluxe RCT Debonair and I felt like I was going through the travel on big hits a bit too easy. So I decided to install a single spacer and see if that improved things. Everything went off without a hitch but now I am noticing that in order to get 30% sag I am having to lower the PSI by almost 10 which seems like a lot. From my reading and basic understanding I thought the PSI would be about the same with only a bit more ramp at the end and now I am worried I did something wrong.


I made sure to cycle the shock from no air to full air cycling it 5x at every 50psi to make sure there is air in the negative. I have done this 3x now since I am a bit anal. I did not add any oil to the can when I put it back together and I am wondering if I should have done that. It's snowing, trails are closed, so I can't ride it so I am just looking at it hoping I didn't do anything wrong.

Pre spacer, single spacer, it was 180psi and according to O-ring just shy of 30% sag with spacer I am at 171 and just shy of 30% sag so about a 5% difference in pressure.

Let me know if I have to do it all over or if I missed something. I might just knock out the 50 hour service since working on the shock seems pretty easy.

I know there are a few Shockwizards on this forum so I am hoping to tap into that knowledge. And I am having hard time dealing with this Rockshox and might just switch to coil but I am still new enough to not know if this is a Me/setup thing or shock thing.

I did reach out to SRAM about this but I haven't heard back yet so I figured I would ask around.