Can’t remember the pre installed cams either, but I believe it was hard center and I swapped them immediately for avia s. Just yesterday switched to space s for helo flying. It’s really not difficult to switch. Remove the springs and one screw per cam. Make a photo before switching so you know the direction of screw and nut (different on both cams because of clearance issues).
Regarding the spring load, I believe to remember one must not exceed a load of something like #80 per cam in total. I think 70 is a good starting point for 20cm and the ultimate grip.