When new my Kahrs all had very wet striker channels. Could be it's been shot very little and still factory "wet", or someone unwisely lubed it up. It's of course recommended to leave dry so it doesn't attract junk.
I agree on the dimple.
I don't have a clue on the C or the 6 or 9.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."