I might get a warning for spamming but here goes nothing.
As someone who is rather proficient with 4 skills, this sequence is not practical with potting at all. I don't have combo master tag because I made a mistake and failed once. So this is just a humble opinion.
My sequence is 123e4e, and when pressed smoothly and correctly, pot is very practical, and if you live in the U.S or Canada. The pot is fast, like really fast.
But for what I see in these videos. There is a big pause after the first Q, if you fight an SD sm, or someone who is very fast with 3 skills (i.e Near, Kiss, Cheater01, Bee!, the Olympian BKs, and many more), you wont survive their first 3 hits.
Btw, these guys are not even serious, that 3rd guy is not even properly attacking you.
My verdict (I know, who am I to have an opinion) practice a real pattern and try again.
Also, for those who claim your 3 skill combo is 123e, hold down 1 then spam 23e23e23e. Well it works, but it's super unreliable, combo comes randomly. Trust me go try it....it looks nothing like the combos of those well known guys who claim to use it. Their combo never fails in its consistency.
Oki that's just my opinion, I might get a blacklist from staff but yolo.
Let me do an edit here
Well if this really works for you and you beat everyone...dang...we are so noob.