Honestly i feel like this glitch deserves its own post since everyone seems to think it shouldnt be allowed into the main category even using the Bass Ruleset. In my opinion superswimming is literally NO DIFFERENT than super jumping in the regards that you can go through walls (superjumps still make you jump over walls so whats the difference in walking through them?) The fact that everyone says no to Superswimming but yes to Superjumping is completely contradictory. the tricks fall in the exact same category: They let you go past walls basically effortlessly.
My Second point is that they don't even have many applications. If we don't allow screen transitions while in the superswimming state (as it practically constitutes a wrong warp) and it follows Bass's OOB rules, then why disallow it? If we don't allow superswimming that follows OOB rules, then we really shouldn't allow SuperJumping either.
My proposal is this:
SuperSwimming can be done, as long as the new OOB rules are followed, and you do not screen transition while in the state of superswimming. This does not allow the 'Game Shattering' affects of the glitch to take place, and only some time saves that are probably >40 seconds.
So the only two choices in my mind are:
1. Allow Superjumping and Superswimming
2. Dont allow SuperJumping or SuperSwimming.
and for the people that would like to see the application of this glitch to alter the route of D4, i have a video here:
https://youtu.be/6ysBKtXXrsIThe video was made as a 100% route, but in No S+Q you would do the first half as normal, and then do the SS when you come back at the end of the game.