Others have used "ebony star", a type of laminate, on the bottom plate (or on the bottom of the top plate), combined with teflon or furniture sliders.
It appears to give a much smoother motion with less "stickyness" when starting and stopping and moving short distances. I haven't done it to mine yet, but plan to in the near future. It can be difficult to source "ebony star", but there's a few threads on it if you do a search.
I've found with mine, with the furniture sliders, I need to take it off and re-lube both plates with armorall every now and then to keep it running smooth.
