I went through so many feet on my old MX510 and MX518 that I bought a huge roll of 1/2" wide industrial teflon tape to put over the feet. The newer models have much bigger and thicker feet so that’s not needed anymore, but man those old ones wore away quick.
I’ve kept my g400s as a backup, and my mx510 is still packed away for nostalgia. I even put new feet on it!
I went through so many feet on my old MX510 and MX518 that I bought a huge roll of 1/2" wide industrial teflon tape to put over the feet. The newer models have much bigger and thicker feet so that’s not needed anymore, but man those old ones wore away quick.