TooPoorForHiFi
Previously known as MidNighTempest
There is some, but I only seem to get it in my right unit so I think it's a matter of my ear anatomy. From my experience, every DD in the CA lineup has some driver flex when using silicone tips. The Atlas is the worst offender here by far as they can just completely cut out if inserted wrong. But, when you insert them correctly and go through the hassle of lifting your ear, watching the angle, etc. it isn't much an a concern. Just a nuisance if you're taking them in/out all the time. The Lyra's and even the Solaris have the "issue" as well but it never suffocates the sound. Just crinkles like static a bit then all is well. The Polaris does the same and hasn't affected my listening when I tried them briefly with all the tips. I'm pretty sure Ken stated that this isn't an issue and won't have any effect on the driver but I know this does irk some folks regradless.
I tend to almost always rock foamies when using anything with a DD anyhow so it isn't much of an issue with me. I personally don't like how silicone fits in my ears unless it's a triple flange from the like of Shure, MEE, Ety's, and so forth.
Thanks! I was just curious.