I never A/B'd different footers, so I can't say what if any differences I would here. I went with the APs because they specifically say that they couple the speaker to the surface beneath them, rather than decoupling them (some of these brass cups claim to decouple. I don't understand any of this other than to say Bobby mentioned I should not decouple the speaker from the wood floor, I tried the APs and think the speakers sound wonderful. Whether other brass cups would sound any different, I have no idea - I only know they work very well in my setup and keep those viscious, sharp spikes off my floors.