すば / sva | SS: Practice Sword in BiT after Early Goddess Sword for Marathon Safe Strat @sva161620 | Uploaded 5 years ago | Updated 7 hours ago
It's about 20 secs slower but good for marathon runs.
New route doesn't have any good backups for wing ceremony skip. This allows to trigger gossip stone after early goddess sword and you can use corrupt file BiT for wing ceremony skip. Triggering gossip stone is required for RBM later in new route.
Make sure selecting corrupt file before opening the chest and select file 1 after text starts to not crash the game.

RBM Explanation by Gymnast v
youtu.be/AUU20ozypkk