Am putting a general purpose 2 player RPi cab togther for playing arcade games up to the mid 90s. The best thing to me seems to be 7 buttons, a row of four and a row of three, the row of 4 being used for almost everything,(including NeoGeo), with only 6-button Capcom games using the second row of 3 - and these games would ignore the 4th button in the other row.
The layout for Neo Geo MVS cabs and the original AES controller looks quite different - the AES is more or less an arc, and it looks to me as if it's intended to be used with thumb and first three fingers? The MVS looks more laid out for four fingers, without use of the thumb. How do you guys use them? I'm trying to decide the best place for the 4th button.
Do I put it to the right of the 6, meaning it is hit with the little finger ('pinky 'in USA I think?), or to the left of the 6, for the thumb?