That's the hardest part of making a decision between ciem vs uiem, single vs dual vs triple based on opinions of others. The best way I've found is to read multiple reviews about a pair, and if you read the same thing in all of them, it's more than likely true. The thing that really made me wonder was reading through the iem mega review. Out of 307 iem's, one of the top pairs was a single armature $269 Custom Art Music Ones. Single armature custom that is cheaper than a Westone than triple armature universal is something to think about, but I don't know if I'd want to order from an out of country company.
I liked the idea of reshelling universals, because it makes it possible to get custom iem's without having to put all of the money out all at once, and without having to throw it on a credit card. If I was going to go with in house customs, I'd probably do UE pros, because they're based 20 minutes from me. Has anyone heard a single driver UE pro, and a triplefi 10 or a westone to give a sound opinion?