I'm sorry, it's still unclear to me whether you need to let go of and then re-press A/B after already having jumped into the air, because to my understanding that makes you lose height on your jump. Maybe I'm just reading something wrong, but that's the impression I got from your first post, where it said:

2. (Jump into the air)
3. You need to release A at just the right time, then immediately hold A again and continue holding X.

Sorry for the inconvenience!

EDIT: It in fact appears your point 3 may be directly referring to point 2. I assumed the instructions were in chronological order. Apologies, and thanks for the help!

After a few hours of practise, I've only gotten the extra jump about four times, and never made it all the way up to the ledge. Definitely a tough one! Do you hold y/x when doing the wall kick? Or does that even make a difference?

Also, I'm wondering why you need to release and re-press A before exiting the shell by letting go of X. Is that required to make the glitch work?

No problem!

Sorry for the misunderstanding! Time without loads doesn't actually remove all loading times, it just lacks that extra time that is appended to runs made on the faster platforms. So time with loads is in fact the correct one to sort by, as it is the one with the added time, thus removing inconsistencies¤ between the loading times of different consoles.

EDIT: ¤Well, it's only an approximation, but it helps.

EDIT 2: Really? The ties works for me. Are you on mobile? I'm on desktop so it could be mobile exclusive for some reason.

Because loading times vary between consoles/platforms, we account for that by adding a pre-determined amount of time to runs done on platforms with shorter loading times, equal to the approximate time saved due to these shorter loading times. This is to make it fair to those who have a console with slower loading times. I hope I was clear!

Interesting alternative. I wonder if this can be made consistent? I'll certainly try.

Reminds me of the wall clip in BC where you do a yump off the switch in the thwomp room. I've gotten it in practise multiple times but never in a run. It also seems more consistent as big Mario. I've only gotten it once when small. Seen at 20:13 in the TAS: