Has anyone else noticed that the trigger zones for popup blockers behave very strangely, in that sometimes the zones don't have any apparent reason to be where they are?
The trigger zones seem to be below the popup blocker, and seem to get further away from the object as the object is scaled up. (Which would put the trigger outside the object, as all the popup blockers have a flat base)

You know how popups 'pop up' out of the ground? Well, I'm pretty sure what's happening is that the trigger zone is tied to the position of the blocker while it hasn't popped up, and doesn't move with the popup when it surfaces. This means that the center of the trigger zone is actually as far underground as the blocker is tall.

With this knowledge, I hope track authors can make some brilliant, reliable tracks. I know I have some plans on how to use this! (At least until Refract realises how wonky it is and fixes it, or makes the triggers movable)