My Begali Sculpture is, to my ears, completely silent from a mechanical perspective. My Begali Expedition, on the other hand, adjusted to match the Sculpture in terms of 0.3mm contact spacing and 25 gm paddle tension, manifests a distinctly audible "clicking" sound when either or both paddles are depressed. It is as if the tolerances for the Expedition are much more generous than for the Sculpture. If I leave the feeler gauge between the contacts on either side and touch the associated paddle, there is no clicking sound from that paddle. That doesn't prove that the sound is from the actual contacts, I realize, but is noted for info. Perhaps immobilizing contact motion also prevents something elsewhere along the path between the contacts and the finger pads from rattling. I don't know. Nothing is visibly loose that I can tell. I've written Begali, so am sure to hear back, but thought I'd query here to see if other Begali Expedition owners have the same experience. I won't call it a problem yet, because this might just be the expected behavior in a lower-tier Begail key. I hope not. Any input appreciated. Thanks.