Sorry, I meant to say I made the action buttons match the lettering of the A and B buttons of the Xbox (not PS4). But yeah, it does mean you'd have to remap the PS4 manually since the default mappings are not gamepad specific but for the game. Fortunately you only need to remap the PS4 once since the setting is persistant.
Okay, let me think about it some more. I'm currently mapping all the other simulations for the general v0.9.8 release in a couple of weeks.
Thanks again for your help in improving the gamepad support :)