In anyone's experience have you eve found a green jell like substance usually between leather and conchas or if conchas screwed to the saddle in the hole or large clumps in the whole and under the leather conchas.
I have encountered it on several saddles some worse tan others. I have tried cleaning with vinegar, anti mold solution, brass brushes. It seems to always come back.
I'm restoring a saddle right now that has had it repeat 3 times in 5 years. This time was the worst.Any help or direction would be of great help
Thanks Mike