If you want a stiff spring...PM me .95mm is where its at. I run them at that setting for park, street, dj and 4x. I am running a lot of compression at the moment to compensate for a bit of a soft spring rate, which is of course a shithouse idea, and will be running less compression and heavier spring asap.
I suppose if I wanted to try hardtail DH I might go 140mm and make the stp handle like a boat....