You can skip the third cocoon pogo in the clawline-less mount fay route with some pretty precise and quick jumps
In order to get the highest jump height on slopes like I did, first you land on the slope, then jump without inputting any direction against the slope (or just don't input anything)
I think it can be done without an air stall, it just makes it much easier to pull off
https://youtu.be/dmymiKZVXwY