Your on the right track. So the 2 virtual joysticks should be just used to map the iPac buttons and nothing else. At this point you should have 4 joysticks. 2 u360s and 2 virtual joysticks. Then x360ce is used to merge each pair together. That is map the u360 to the stick axis and then the vjoy buttons to the button input. I can’t remember if I had to do anything special for this to work,but, I can’t remember it being too much of an issue. Make sure both vjoys are enabled in the vjoy app. Maybe this is why you only see one in windows.