Hello Dan,
Thank you for sharing with us. I believe coconut vinegar will also works well for this job, we use this too here in Indonesia (but much less popular compared to 'legendary' lime juice-as how would gin&tonic be without it
). I want to treat my moro kris as how they would be traditionally treated, that's why I ask the questions.
It is clear enough so far, but should anybody has different versions of method and material please be so kind to share it with us.
Cheers!