I have a 3 white disk whole home wifi to get a signal in my garden office. I have now received a black disk complete WifI with my upgraded subscription. I know the systems are not compatible. Should I abandon the 3 disk set and just use the new disk and is it likely to send a signal to my garden office?
If your current setup is working, why change it?
Without trying it, it is impossible to tell if the black disc will work any better.
Its the only way you will find out.