Three works so much better on uneven floors.
I have hardwood floors. My previous speakers sat on Herbie's big fat dots (3 of them for the unevenness). I now have C & C Abbys with 4 spikes. I use discs under them to protect the floor. What I foun was it is easy o over adjust a spike. Figure out which spike needs the adjustment, then very slowly twist until the speaker is stable. One spike is all that should need adjustment.