First off, wow, what an experience, glad you made it through, and that UC was around! Thanks for sharing, as real instances of what happens in the real world, what can fail in stress, are always helpful to learn from.
I have been trying to "stress test" myself by walking as I normally do with heavy leather jacket/jeans, then I start rapidly backing up, and simultaneously trying to wave something like a Matriarch or Espada XL and try to solidify my aim, control, flow, normally aiming to slash thigh area of a 6-foot man, turn, run. Even this small and paltry training with no resistance makes me realize how messed-up your senses can get in an emergency and what practice and fine motor skill one even needs to get a knife out and into the fight fast enough. I do hope I never know, though, and I hope my Matriarch will only ever get used on mushrooms.