I'm intrigued by custom ear molds, and I have several questions. (I've never had a pair, so I know little about them)
1. Can I get custom molds for any in-ear headphone, or only ones that are designed for it (like the Etomotic)? Or can I get one made for, say, a Grado GR8 or GR10?
2. How do you get the Etomotic custom? Do I buy one of their "custom compatible" models, and then go get my ear cast, or are there dealers that do it all in one step?
3. What are the most recommended brands for the custom in-ear mold?
4. What's the general consensus on the benefits of custom mold vs a well fitting stock tip on an in-ear?