I spent a lot of time researching the posts on this particular forum before I purchased my new Westone 4 IEM's. When I first tried them on, I used the comply foamies that were already installed. I loved the sound rigth from the start (liked it better than my old Shure SE 530's), but I was not used to the soft, pressure free feel of the comply foam and thought that maybe I was not getting a good seal. I figured, if the sound is this good with a mediocre seal, how good would it be if I could get a proper seal? My Shures always felt a lot tighter, and blocked out more outside noise, so I decided to try some other tips instead. Firstly, the Shure olives from my SE 530's would not fit in my ears properly anymore with the Westones (??), and the sound actually deteriorated. So I tried the new Star tips instead. They sealed my ears properly, and the fit was good, but the sound was just unbearable! Very harsh and restless, instruments all over the place, the bass was boomy and it felt like there was an echo in my head. The triple flanges have never been for me (they don't fit me at all), so I finally just went back to the (already slightly grubby) comply foamies, and ... man, what an awesome sound! Fullbodied, tight bass, and no harshness at al. Do any of you have the same experience with the various materials of tips? Am I doing something wrong or do the Westone 4's really sound terrible with the silicone tips, and unbelievably good with the comply? Should I start saving up for a shipment of comply foamies now?