How do people make IEMs comfortable for them?

I haven't been involved with IEMs as much as open-backs, but I still tried my fair share of them. They are all unbearably uncomfortable to wear after 20 minutes or so, mainly because of the pressure points they create on your ear, particularly the concha and tragus. It is genuinely like having a rock in your ear, and I don't know how you guys do it.

Don't get me wrong, I'm happy for you, but how do all of you make IEMs comfortable, and are there any particular IEMs that might be "the one" in terms of comfort? I've looked into Final E5000 most recently, which seems promising since it doesn't have the rock formation in your ear. Any other recommendations?