Deku Ceiling Clip information

Deku ceiling clip:
Having a y-velocity of ~7.134 or over as Deku is sufficient to clip anywhere a ceiling and wall meet.
Theoretically, having a total speed of a little more than this (I'm guessing about 8.0) is all it takes (vector of linear velocity and y-velocity), but more testing needs to be done before I can say for sure.

Already, this technique is useful in 100%: https://www.youtube.com/watch?v=QZU__ut4gWA
Deku Link clips because his y-velocity is sufficient for enough frames to clip through. This is difficult to replicate because you need to get through the wall before you lose that speed, so some horizontal velocity helps.

I also believe this technique applies to Indextrick. Normally, going fast doesn't just let you clip through walls (which is why I think it's because of this).
So, this could theoretically be used to become human first cycle.

How?
Clipping into the laundry pool in first cycle would give access to the Keaton Mask, which you can put on in the H&D minigame on the Japanese version. Normally, when people try to clip into this corner, they spin and bounce on water under the arch. With this method, your y-velocity goes over 7.134 for only 1 visual frame.
However, under normal circumstances of bouncing, on your last hop, you get 2 visual frames with a y-velocity of over 7.134. This is relevant because this speed is ALWAYS sufficient to clip.
So, the new theory, which I invite everyone to try, is to try and clip into the hideout as late as possible. That is, go under the arch after your 4th bounce, and bounce up through the corner.
There isn't a ton of hope of this working, but this information should shed new light on the trick and gives new hope for human first cycle to be possibility. Don't forget to try and apply this clip to more places too!

Here is a lua script for Bizhawk that displays the relevant speeds: http://pastebin.com/1yPGc3hW