I think you went a bit over the top with Spiff (personal preference), but I love what it does on DIs.
It seems to sounds way better than a normal transient designer, and enhance the pick attack just where it's needed.
Considering to try the demo, and hear if it can save pussy picking DIs.
Soothe is amazing, I use it all the time just like on your video.
It's amazing too on cymbals !
Nice video by the way, thank your for taking the time to do it