I haven't wired up my 8way ever... You can switch the Happs between 8way and 4way mode.
I hate doing that! I have to go under the panel with pliers, compress that tough spring to get the plastic out of the way, yank the locking washer off, flip the plastic over, and hurt my thumb getting it back on.
and even if you do that, it just makes the diagonals a little bit less sensitive. You don't get the physical locking into the directions. I'll have to look at those oscar restrictor plates. I got a "universal" joystick, but planned the hole it was gonna go into wrong, so it's sitting on the table and a TFB joystick is in its place. I don't wanna clutter my panel with a fifth joystick, esp. since I would need a sixth to play bomberman two player, and an eighth to have what I
really want, 4-player bomberman.
Maybe I'll make a dedicated 4-way cab sometime.