Chase has been weird. I had to go the exec route to get my Freedom changed to a Signature, and they consistently lagged behind Cap1 in credit limits. Then, when my scores were over 800 suddenly they were happy to give me a bump up to 20k on the Freedom, and gave me instant approval on the Vader card for 25k soon after.
I think it helps that I use it a lot and PIF every month. A few years ago I called a credit analyst at their recon line when they denied me for a CLI, and she was very forthcoming about why and what they looked for. She mentioned it was a positivbe that I PIF every month, despite what I've heard about card companies prefering us to carry balances so that they can earn interest. The thing that kept me from the increase back then was too much recent credit. She said that if a person has a lot of new credit, or credit increases, Chase prefers to wait and see how they handle it before jumping in with a higher limit. She suggested I let it age to 6 months or a year, and try again. She was right.
In retrospect, what she said makes sense. Chase wants to see a long history of responsible credit use before they are willing to risk a high limit. They don't seem willing to hand out a lot of small increases like CAp1, but when they finally do, it's a good bump.
