Ron,
The leather I used for your kilt was tanned in Argentina. I have found them to produce the best hides for my purpose. I also hand pick the hides. It's become a ritual at the supplier. I go through bundles of hides, checking not only for quality but size of the hide for the best yield. It takes time but is well worth the effort. Pleased you are enjoying the British Rebel Tan leather kilt.
Cheers
Robert