I was just wondering if anyone had used diamond whetstones as finishers. I know Naniwa has a 10k resin bonded stone. NSK makes a 10K, then there is the nano hone resin plates which seem weird(unclear if they would work well for razors?). Diamond sprays/compounds are commonly used for stropping. The Naniwa one seem to get good reviews for knives. Of course 300 dollars is nothing to sneeze at but people pay far more for Jnats etc.