There was a black gripped RC leader at the Max 2 years ago. It was not painted. I went back to get it and it had been sold...
I have a theory here and it's just my theory:
Klass had a load of black trylon to make 1st model Rails, when the contract for the new 2nd model was let to Eickhorn, they, being frugal Germans, cast 2nd luft, armys and a few RC leader grips and decided to paint them to sell as std daggers. Over the years guys removed the paint and so today we have an assortment of Klaas black grips on these daggers. I know this to be fact on 2nd Lufts, and Armies cause I own examples. The RC? Have yet to find one with paint remaining...
Lastly- I am not saying that the Funeral 2nd luft did not exist in the period, what I will say is that most of these started life as yellow gripped 2nd lufts.