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I'm happy to say that my wife's marriott card is now at $11k. She was approved for $8k on April. Auto CLI is just after 90 days. Should she call and ask for more? I'm an authorized user and I use it more than her. We got the 100K points in the first month and have pushed a fair amount since then.
I wouldn't call and ask for more with Chase unless you are seriously using the card heavily each and every month with a very high annual income and very good credit profile/score. Congratulations on your credit limit increase! Continue the good work and Chase will be good to you.
(If you use it more than her, then I wouldn't have her ask for a CLI, personally as there clearly is no need. Just my opinion.)