I don’t see how that’s convenient at all, especially in tournaments. For example, the converter I have for Ps3 switches the order of the buttons
Triangle & Square Swap
X & O swap
R1 & R2 Swap
L1 & L2 Swap
Of course I only need four buttons, but chances are nobody else is going to need my button setup but me. Then there are sticks w/ different button layouts, so some players may map buttons to the inside or outside buttons depending on preference. And then you have players who may have learned the game @ CTF or another arcade, and want to swap to traditional Neo Geo layout.
Ultimately 4 setups aren’t going to cover all the possibilities, and it just makes it more confusing when both players have to make sure they’re on different map settings, and make sure their map setting is right, since it may have changed in between matches.
And then especially on PS3 where there’s always trouble making sure sticks are in the proper controller slot, it’s going to be a huge hassle when you apparently can’t quit out of char select screen back to the controller select. Players have to enter game, quit out to the main menu, reselect controllers enter game, confusing button check, then go back to member select again.