What's the best

yes, you can unscrew the feet, all of the gear I had, have the bottom panel threaded or the nuts are welded to the inside of the bottom panel or you can leave the feet in place and only use 3 cones, 2 in front, just inside the feet and one in the rear center, or the reverse ....

Review the website of www.audiopoints.com and search the threads under audiopoints and sistrum.

The only "product" that I have found that gives superior sound in my FMJ CD23 are XRCDs...

Rock you don't necessarily want to secure the cones to the bottom of the player. You can change the sound "tune them" by varying the spacing between cones. Cones farther apart typically is leaner / more detailed. More them one inch at a time closer together, & the sound becomes less detailed, warmer / more musical. So you can experiment with different cones & also experiment with cone spacing in order to tune the sonic signature that's most desirable to you.

Thanks Dill; I've started experimenting with the racing cones. I can't hear any difference from the AQ feet. So Bob, I'm not confident that I'll hear any changes if I move the cones around. Not saying you're wrong. The changes that I've heard from different power cords, ICs, cables, and feet have been so very subtle that I can't justify the cost of swapping out my current accessories. Maybe my system isn't revealing enough or maybe I've got a hearing loss. Who knows! Sherod, thanks for pointing me to the audio points site. I only have threaded ones. I'll try them in another week. Pbb, I own only one XRCD (Bill Evans Trio) and while the sound is fantastic, the music is not to my liking. If I could find more popular (rock) artists on that label, I'd buy them.