Thanks for the feedback. I was going to try it but the sound change doesn't sound worth it.Thx for the link.
I did this before he ever posted when I got them as I have symbio tips. I tried other foam as well. I was not happy with the sound signature at all. For my ear and fit bass was not improved and highs were too rolled off and muted. You can do this with other foam tips. I had a some foam from a company called trinity and did like it as well. I was hoping to find a comply like solution to test
As an FYI I also did comparison of the APPs with the Bose 700 and XM3 in a post in the main TWS thread: https://www.head-fi.org/threads/goi...e-we-there-yet.861024/page-1187#post-15387413