My mistake, and yes we're talking about the same thing. It's weird to me that I can do it consistently on zss, yet not Marth. Do you have anything specific you'd reccomend to improve my Marth movement then? Besides the fundamentals that is.
About the dash dancing, if you practice at half speed in training mode, and if you are good at rhythm, double that speed in your head and memorize it. That helped me.
Movement wise, airdodge to air attacks can be great, if used intelligently.
Empty short hops to dtilt is better than ever because of added range.
Same goes for dash into shield then dtilt.
You can spam sh nair if you use the right inputs in the right situations.
For instance, if you dash, sh nair, and fastfall with exactly those inputs, you'll likely get punished on shield.
(But if it hits, it's a great combo starter)
But if you dash, sh nair, instantly DI the opposite direction, then fastfall, then you will be applying safe pressure on shield and it has a great chance on catching standing opponents even at 0%.
Never fastfall fair, dair, or Nair into a shield.
Constantly move in and out of opponents dash attack range.
Pressuring with empty sh to fastfall grabs and sometimes a well timed turning shieldbreaker tipper will keep them from spaming shield.
You have the fastest walk speed in the game, so use it.