My SO changed from a 5th element air shock on her ASR-SL to a Fox RP3 and its transformed the bike. At one point last year she was going to junk it and get a SC Blur XC instead but fortunately its all turned out fine.
I’m not totally convinced about the RP23 on my Spider FRO, previously I had a Fox AVA on a classic Blur with which I never had a problem with bobbing, I just find that if I accidentally turn the PP on then the biggest difference is that after 4 or 5 hours my ring hurts.

Del wrote – Dave, i know… ( the clue is in the name mate )

I know you know what my PP is like however others may not know what we know… 😉

The RP 23 has true low speed compression damping, it will run throughout most of the stroke. But it can be blown off by a fast hit.

I run mine almost locked out on my SC BLT, and then when it gets bumpy, PP flicked off, perfect.

The higher the air pressure the more pronounced the effect of PP settings.