8bitdo arcade is awfull the jlf is solder to pcb and you must to solder other jlf connector to put other stick, they said that fits Happ and seimitsu and I.L. joystick in amazon reviews, one review in amazon say that LS-40 not fit in this stick because get stuck and this have eleven cm of height and i don´t know why not fight this joystick, i think here must be fit and I.L and Happ Joystick that is very rare