Update:
- smooth switching between locomotion types
- Speed Warping
Speed Warping is working well, but the final result needs more polishing. Kubold’s run animations have different speeds, without Speed Warping it will be hard to move the character in all 4 directions without foot sliding. I think it’s possible to avoid the foot sliding without Speed Warping, but it will require the same speed for all animation in one locomotion type (walk, run, sprint) and a lot of magick 
Anyway I don’t know how to avoid the foot sliding when character changing locomotion direction. Maybe I need to apply some foot locking with IK.