Found this glitch while searching for routes in 0.8.2. If you drop the suitcase at a certain angle in the checkpoint's door, you can glitch it and hit very quickly, either by letting it glitch out or grabbing and moving the mouse. Most of the time it gets thrown into space, but if we somehow find a consistent way to do it, it could be a little time save in Any%. It maybe works in older versions too, haven't tested it tho

Yup, that's fast as hell. Good find!

I find that you can drop it next to the door at a precise angle and have it destroy the door all by itself. But the suitcase flung across the map once the door broke. This is definitely something that would need more research! https://streamable.com/160rlk

True, @Naleg, there's a way to even chop the door instantly. That's so inconsistent though that barely worth trying, but there's always a room for improvement :D