[anonymously]

Have you read my prior posts in this thread? Did the vet do an x-ray/ultrasound recently? He could still have stones, it doesn’t become an emergency until one blocks the urethra…the stones can move around.

Also, it depends on the type of stones he has, and they can have more than one type.
I wouldn’t mess with the diet as you have indicated his condition may not be stable ie: excessive licking.