Sorry for the necro, but I just received a new HHKB that has this extra sound after the release of the key. The keys make a little ticking sound right after you bottom out and start releasing the key back up. For some of the keys, depressing it from a certain angle only makes the sound. It affects quite a few keys on this board. I emailed EK to see what they have to say, but of course with the cost of these it's hard not to be a little paranoid. The sound should go away after a bit? Unfortunately, some of the keys with the problem aren't used often ("\", for instance). Does sitting here and "working" the switch repeatedly help at all? I'm only concerned about this because I've owned two other Topre boards and didn't have this problem on either board. Thanks guys!