the best way to ledgedash is to do a firestall or DJ stall after you grab ledge (you can do as many firestalls as you want, but try not to stall too much)
Marth's jump is slow enough to not be affected by different pre-ledgegrab ECB alignments, so there was no point for me to create a similar graphic for Marth.
The original thread with the full-size picture is here by the way: smashboards.com/threads/how-pre-ledgegrab-body-states-affect-your-ledgedash-timing.346128/
