And this is why we ask for more data than mere model names.

Duragrouch- The adjustable cable end seating to lever pivot dimension has been done on other levers for decades. Likely the best known is the original Avid Speed Dial version with the cable head seat on a threaded rod that when rotated would move that cable seat up or down. Before, and after, that there were levers with two different cable seating holes. Here's a link to a pair of those Avids for sale (not my sale). Andy

Rare Vintage Avid Speed Dial Ultimate CNC Cantilever Brake Levers Black 128g | eBay