To those who own MULTIPLE IEMs, how do you decide which one to use?

I just got Moondrop Chu 2 around a month ago, and just got my KB Ear Rosefinch this week. I found myself in a dilemma where I don't know which one to use during a particular situation. I originally got the Rosefinch out of a thirst for MORE bass that the Chu 2 lacked. And while the Chu 2 is more clear, I just think it's hard to find a good way to use it.

To those who own like a $&@TON of IEMs, how do you manage?