So the way I understand it if you do a command grab through a blockstring with a 1 frame gap then both the grab and attack will become active on the same frame. What has priority: normals (or ‘non-grab’ specials) or command grabs? And is there any difference between regular grabs and command grabs concerning priority?
You also encounter this scenario on wake-up. If you do a ‘reversal’ 3 frame jab on wake-up and your opponent grabs you on the 3rd frame (2 frames grab invincibility after wake-up) then both attacks become active on the same frame.
I guess the question has more practical applications towards blockstrings and whether or not it is safe to use a 1-frame gap blockstring on a grappler. Still I’d like to fully understand the base mechanics at work.