I wish Filco customers demanded better key caps as often and as strongly as they demand ping-less boards.
Filco caps are bottom rung on a "premium" keyboard. I propose we change directions here and focus on something filco/diatec can unquestionably fix for us.
The causes of ping need to be further investigated (preferably by vendors/manufacturers; but our hobbyists are resouceful and inquiring, and already seem to be presenting solutions)
Caps not ping!