So I was thinking today after I finally found a bumper that the darn thing just fits too loose and I can't stand having it flop around the outside of my phone... well -- heat shrinks plastic/rubber....so I put the bumper on my phone and turned my heat gun on, and was VERY careful not to get my phone extremely hot, but waved the heatgun back and forth for a few seconds right near the headphone whole (where the rubber goes all the way across) and it actually worked. The rubber near the antenna hole shrunk just enough to make it much tighter on my phone....but be careful -- do NOT melt your phone. I was very careful of my phone and took my time to make sure no problems hahaha Hopefully this helps someone else! -Matt PS - I take NO responsibility if you ruin your phone doing this....or melt it. Do this at your own risk.