Release check on or off

What does it really do and should it be on or off ?

I’ve been playing with off and then I turn it on to check it out and didn’t see difference…

It’s for negative edge. I leave it on, because that’s what I’m used to from other fighters, but the timings in this game are little weird. It seems like one must put the inputs for a cancel a good deal before the cancelled move actually comes out, and the number of frames that negative edge is valid for is really large as well. It’s a bit too easy to get the wrong move, especially when directional inputs overlap between various specials, so I’m tempted to turn it off.