It's debateable when it comes to multiple lines. The reps will say it's 1 HP / CLI x Cards.
I did a CLI once awhile back and got 5K. Turned around less than a month later and opened a new account for 25.9K of which I shuffled around the CL's to where I wanted them.
Some have luck on the CLI side and others have better luck on the new account side.
To me it's hard enough to convince Chase to give you one CLI much of the time, much less risking two HPs and trying for two CLIs.
When requesting CLI's with Chase, is it the same standard procedure, as multiple apps during one a single day? In other words, can I request two CLI on two separate cards in a single day, resulting in one hard pull? Or nah?
Based on a variety of DPs, it's likely to result in 2 HPs. Potentially, *if* approved for a substantial amount on the first request (big *if*), you could allocate some of that CL to your other card and avoid the 2nd pull. Otherwise, you can try your luck, but results will vary for sure.
If you're willing to take an HP for a CLI, I would just take the HP to app. That worked for me getting the CSP. Now I can reallocate to F and FU as well as earn a SUB.
The income update thing doesn't usually trigger a CLI. It's just something they're required to ask annually.
I've had hit and miss experiences with CLIs with Chase. A few years ago, I was denied for a CLI on my then 10 year-old Freedom card yet minutes later got a CSP approval for $12,000 and a few months later got a Slate approval. About a year before that, I closed a Slate card (originally an older legacy card they did the PC on themselves), and got 3rd degree from an analyst and a HP just to move the credit line over to my Freedom card!
After PCing my CSP to CSR, I decided to give it a shot a few months back and they doubled my credit line from $14,000 to $28,000. A few months ago I got a $15,000 SL on Freedom Unlimited and just last week I got a random auto-CLI of $1500 on my Freedom. Over $30k in new credit from them in the past year, while having mixed results years prior.
Certainly opening a new card to reallocate limits is a good option for many people. However, 5/24 will come into play without green checkmarks or in-branch preapprovals. And even then, it might not always be in someone's best interest to open a new card. I know in my case I wouldn't open yet another Slate card just to reallocate limits, and the only cobranded card that has ever come up with a green checkmark for me is the United card, which does me no good as a Delta/SkyTeam flyer.
As for reusing HPs, Chase is very much YMMV, and any time I ask them for something I always expect 2 pulls and I'm happy if there's only 1.