Do you think the 508.24 benefits from vibration-draining tuning feet?
Theoretically it should, but my empiric observations so far are that they just sound different, but not better (or I just haven't found the "right" tuning feet yet).
I have also tried many combinations of tuning feet and / or isolation platforms and as of yet am not completely satisfied with any of them.
My current favorite is 3 Mapleshade Isoblocks on a solid, stable MDF rack (I am currently using 3 Mapleshade Ultimate Triplepoints, a 4 inch thick piece of solid maple, and 3 Mapleshade Isoblocks and am not sure that it is an improvement over the 3 Isoblocks alone).
My second favorite "suspension" is the player sitting directly on a Black Diamond Racing The Shelf for the Source via it's stock rubber feet.