Without being long winded, I believe cnr has made a difference in the size of fish. There are more fish continually fighting for the same things. We all learned that many fish in one pond will keep the fish small no matter the genetic makeup. Fewer fish in the same pond will get larger. 100 years ago, it was common to remove stringers of large fish, the small fish had a lot of opportunity to become larger. Now, we shame any one for removing fish. Sure, many still do, but not on the caliber that used to be. (When the fish were commonly larger)