The answer to OP's question is less than clear and there is much disagreement. The two best cantis ever, IMO, would be Campagnolo Record O.R. (1992-1995) and the current production Rene Herse. Which have completely different geometry. The basic inexpensive and still available Shimano CX50 was used by many cyclocross pros right up until the sponsors just would not have it. That brake has little in common with the other two above. Paul Components sells cantis with widely differing geometries and all of them are more than good enough. I would suggest try the CX50 at the very modest price and see what you think. The different brakes are not all the same and user expectations and requirements are all over the place.