The EPDM bushing has set pins on either side to hold it into position. The bushings were literally tearing and pressing out of the side of the mount.
The alloy parts are exceptionally well made. I loved the EPDM bushing also but i am quite miffed that CP-E wouldnt replace a set of "lifetime" bushings because i dont have the original slip of paper showing when i purchased it. The mount lasted 4+ years so im not fretting that much but it would have been nice to just say, "yes, send it in and we will press new bushings on it" instead of "no, we cant do it under warranty and it will be $40+ S&H to get them replaced".
For $40+S&H ill just buy another mount that i know wont come apart which i went with Boomba.