Yes, 3DAS is allowed for this, we follow individual rules but also marathon rules, and if it's allowed for 246, then it's allowed here (one of the 1545s I did 2 years ago, I did SM64 120 on 3DAS and is on the leaderboard)

It could be deleted, I feel like we should remake one if it was deleted, if not, then a new link should be made

So yeah, I havent seen this yet, but in 100% and in No DCW/BC, it is not gonna be helpful cause we do a clockwork warp into the other side, so even if that happens it wouldnt be a big deal cause we can backflip and get the jiggy when falling down, cool glitch tho, definitely didnt know that can happen :)