I have my K2 opened up to do some necessary tweaking which I've postponed long enough. I wanted to consider doing that mod which grounds the cases of the crystals in the filter system but I can't find it on the Elecraft site. Is it there? If so could someone please point me where? Or is it somewhere else? Anyway, I'd appreciate it if someone could tell me where to find it. Thanks. 73, Dave K8TRF