I don't have a video of this yet, but I'm sure others have noticed. When your agility is stacked really high, for example, you're using the MIDA multi tool, your turning speed while sprinting is greatly increased. Almost to the point it feels like your sensitivity has been upped. It appears that after using a blade that drops off the crota Knights on the moon or earth, you gain hidden agility/movement speed buff. After the sword vanishes, your sprinting turning speed is still jacked up. It might be a simple oversight due to the swords only having been used in a mission that ends immediately after the sword disappears. Not a huge deal, but definitely a little weird.