I am one of those people who is constantly fiddling with their suspension setup; even on the side of the trail if need be.
I found a little tip utilize the EDC one up tool to judge sag range of a 160mm travel fork that might help some of you out trailside sometime.
The top cap of the One Up EDC tool measures both 32mm (20% sag of 160mm fork) and 25mm (15% of 160mm) across. This means it can be used as a quick "go - no go" gauge for fork sag as this just happens to be the recommended sag range for many 160mm forks.