Rega P9 Feet on a P3-24

Have any of you installed a set of Rega P9 feet on a Rega P3-24? Were there any sonic improvements?

The P3-24 is sitting dead level on the top shelf of an Atlantis Reference equipment Rack (shot filled, heavy and steady). I don't notice any change in sonics due to footfalls or whatever. My interest in different feet would only be to improve the resolution if possible. I don't think I have any isolation problems unless I'm mistaken.

What about other brands or designs, any improvement noted with carbon fibre or ceramic, perhaps points of some variety?

I used to have a Wadia 860 on that shelf that sounded wonderful. I added a top of the line "Silent Running" isolation base to it and I thought the Wadia had been swapped out for something even more incredible. The most dramatic improvement was a much blacker background and much more stabilized localization of singers and instruments.

That's partially why I'm exploring different feet or whatever for the Rega. Even though it sounds isolated from inputs and vibration, I believe improvements might be possible?

Any thoughts based on your actual experience would be greatly appreciated.