I have just about every adapter made for the xarcade, and some custom interfaces that was given to test out. As you can imagine, I have nearly every console to date that is operational, all keyed into one huge 9 pin serial switchbox. I also have the solo and tankstick models. Everything works flawless, even the USB version. I replaced the microswitches but that was the only mod.
For all the other console controllers, i use in conjunction with xarcade interfaces such as the xbox360, especially driving wheels, or flight joysticks, is the cronus Max. There is some additional mapping for deadzone with joys and wheels with cronus, but none are required for the xarcade interfaces.
I would look at getting a Cronus Max to extend your current xarcade adapters with the ps4, wiiU and Xbox one. The xbox360 interface (which plugs into a psx interface) with the cronus plays Xbox one games perfectly with the xarcade joystick controllers.