I just checked. The hub on the prop is too large to fit without some modification to the spinner. It just needs a tad of cutting but be careful not to invade the mounting holes on the side of the spinner or the cooling slots.
The shaft on the Q80 tucks in nicely. The 8mm inserts sometimes need to be shaved down to fit the 8mm shafts. I do it with a taper reamer.
Caution: The 70MM spinners come with or without cooling holes. This is because with some of the larger props cutting them to fit will go into the cooling slots.
All of the stock falcon props fit any of the Falcon spinners.
I hope this helps. Mike