I don't hear any ping except for a bit when I hit the spacebar. However, I placed my ES-87 in a recessed (pull-out) keyboard tray, which may be slightly dampening its sound.
BTW am enjoying my first week with this board and its mx clears: increased typing accuracy and so far, no major fatigue on my fingers. I'm interested in possibly replacing the keycaps just to increase the quality of the overall experience, but not sure with what.
Previous board: matias tactile pro 4, which I initially liked, but ultimately found the keystroke too light.