Here's a small explanation on how to skip the 2nd set of Red Caps in Whomping Willow. This is allowed in all categories, including Glitchless. This only works with the 2nd set, because the 2nd set of Red Caps for some reason is only activated by the player, not the friend ai. The 1st set can be activated by both the player and friend ai. Even if it did work, the door in theory would stay locked until you fight them. This is about where the trigger is. Here's how big it is. You want to push Harry or Hermione over the trigger. Technically the friend ai can walk past it on its own, but it takes too long. Here's a small demonstration: