I am shocked that at my current CL, Discover has granted me yet another CLI! I have been at $34.2K for about two months, and yesterday just for the heck of it decided to put in for another. I got the 2-3 day review message. A few minutes ago I logged into my account and was SHOCKED to see that I have been increased from $34.2K to a whopping $40.7K - an increase of $6500!
I wonder when Discover will say enough is enough? Never in my craziest dreams did I think they would let me go over the $40K mark. I am sure in reality they would never allow my balance to get that high, I am literally pray that it never does, but sure looks good! 
