So far, my view is that if any aluminum standoffs were to make solid contact with the edges of the holes for the screws of the radil mount it should be ok. Better still would be to use small blocks of hardwood to serve the same purpose, IMO. There's just something about the nature of wood that permits it to absorb and mute a little vibration rather than directly telegraph it onward better than metal. I'll have to go out and take a closer look at the back of he mount again to verify, but I recall looking at it from that point of interest the other day.